Curious to know your due date?
Our easy-to-use pregnancy calculator is the number one most popular way to calculate your due date based on the date of your last menstrual period.
Your baby is due:
Aug26
Estimated Date of Conception: Dec 03, 2021
(97 weeks 4 days or 24 months)
This is based on the cycle length provided, not an average cycle length of 28 days, however it is still an estimate.You are 245% of the way through your pregnancy.
245%
Weekly Development
Week 1 & 2
Weeks 1 & 2 of your pregnancy is Nov 20, 2021 - Dec 03, 2021
Baby Conceived
It's ovulation time. If sperm and egg meet, you're on your way to pregnancy.
Week 3
Week 3 of your pregnancy is Dec 04, 2021 - Dec 10, 2021
Implantation occurs
Your baby is a tiny ball of several hundred cells that are rapidly multiplying and burrowing into the lining of your uterus. The cells that become the placenta are producing hCG, the pregnancy hormone. It tells your ovaries to stop releasing eggs and keep producing progesterone. Once there's enough hCG in your urine, you'll get a positive pregnancy test result.
Week 4
Week 4 of your pregnancy is Dec 11, 2021 - Dec 17, 2021
Positive Pregnancy Test
Your baby is an embryo made up of two layers, the hypoblast and the epiblast. The primative placenta is developing and preparing to provide nutrients and oxygen to your growing baby. The amniotic sac is developing and will surround and protect your baby while it continues to grow.
Week 5
Week 5 of your pregnancy is Dec 18, 2021 - Dec 24, 2021
Your embryo is now made up of three layers, the ectoderm, the mesoderm and the endoderm which will later form all the organs and tissues. You might start to feel the first twinges of pregnancy such as tender breasts, frequent urination, or morning sickness
Week 6
Week 6 of your pregnancy is Dec 25, 2021 - Dec 31, 2021
Heartbeat detectable by ultrasound
Your baby's heart is beating about 160 times a minute and the nose, mouth and ears are taking shape. Lungs and digestive system are forming organs.
Week 7
Week 7 of your pregnancy is Jan 01, 2022 - Jan 07, 2022
Your baby is forming hands and feet. Key organs like the stomach, liver and esophagus are beginning to form. Your uterus has doubled in size. The umbilical cord is transferring blood and waste between baby and mother.
Week 8
Week 8 of your pregnancy is Jan 08, 2022 - Jan 14, 2022
The respiratory system is forming now. Breathing tubes extend from the throat to the branches of the developing lungs.
Week 9
Week 9 of your pregnancy is Jan 15, 2022 - Jan 21, 2022
Your baby is nearly an inch long now. If you watch closely, you may see your baby move if you have an ultrasound done
Week 10
Week 10 of your pregnancy is Jan 22, 2022 - Jan 28, 2022
Your baby's organs are growing and beginning to mature. The baby's head comprises half the length of the body.
Week 11
Week 11 of your pregnancy is Jan 29, 2022 - Feb 04, 2022
Fingers and toes have separated and the bones are beginning to harden. External genitalia has almost completely formed.
Week 12
Week 12 of your pregnancy is Feb 05, 2022 - Feb 11, 2022
The kidneys can now secrete urine and the nervous system is maturing. You baby may be curling all 10 toes, practicing opening and closing fingers and sucking a thumb. And mom should have gained from 2-5 lbs.
Week 13
Week 13 of your pregnancy is Feb 12, 2022 - Feb 18, 2022
Miscarrige risk decreases
Your baby now has unique fingerprints and the kidney and urinary tract are completely functional, that means she's peeing. And if you are having a girl, her ovaries are already full of thousands of eggs.
Week 14
Week 14 of your pregnancy is Feb 19, 2022 - Feb 25, 2022
Your baby's facial muscles are getting a workout as he squints, frowns, grimaces and practices his first smile for you.
Week 15
Week 15 of your pregnancy is Feb 26, 2022 - Mar 04, 2022
Your baby is looking more like a baby with legs growing longer than the arms and all her limbs moving. The ears are properly positioned on the side of her head and the eyes are moving from the side of the head to the front of the face.At your doctor's visit, he should offer you a quad screening test to check for Down's syndrome or other chromosomal abnormalities.
Week 16
Week 16 of your pregnancy is Mar 05, 2022 - Mar 11, 2022
Baby's heart is pumping about 25 quarts of blood each day. His eyes are working and moving side to side even though the eyelids are still sealed. Mom will have a "pregnancy glow" due to increased blood supply.
Week 17
Week 17 of your pregnancy is Mar 12, 2022 - Mar 18, 2022
Baby's skeleton is changing from soft cartilage to bone and her heart is now regulated by her brain. She's practicing her sucking and swallowing skills in preparation for that first suckle at your breast or the bottle. Mom's breasts may have increased a full bra size.
Week 18
Week 18 of your pregnancy is Mar 19, 2022 - Mar 25, 2022
Gender reveal time
If you're having a girl, her uterus and fallopian tubes are formed and in place. If you're having a boy, his genitals are noticable now but he may hide them during an ultrasound. Are you feeling kickes and punches? Baby's hearing is also developing, so you may want to start talking to your baby.
Week 19
Week 19 of your pregnancy is Mar 26, 2022 - Apr 01, 2022
Baby's brain is designating specialized areas for his 5 senses - vision, hearing, taste, smell and touch. A waxy protective coating called the vernix caseosa is forming on his skin to prevent wrinkling.
Week 20
Week 20 of your pregnancy is Apr 02, 2022 - Apr 08, 2022
Your baby weighs about 10 ounces and is the size of a small banana. Her uterus is fully formed this week and she may have tiny primitive eggs in tiny ovaries now. His testicles are waiting for the scrotum to finish growing and will begin their descent soon. Mom can expect to gain about 1/2 lb per week for the rest of her pregnancy.
Week 21
Week 21 of your pregnancy is Apr 09, 2022 - Apr 15, 2022
Feel all that moving and shaking going on! Baby's arms and legs are in proportion now and movements are much more coordinated. Bone marrow is now helping the liver and spleen produce blood cells. The intestines are starting to produce meconium, the thick tarry looking stool first seen in baby's diaper.
Week 22
Week 22 of your pregnancy is Apr 16, 2022 - Apr 22, 2022
Senses are growing stronger. Now she can hear your heart beat, your breathing and digestion. Sense of sight is becoming more fine-tuned and he can preceive light and dark. Hormones are now developing which will the organs the commands they need to operate.
Week 23
Week 23 of your pregnancy is Apr 23, 2022 - Apr 29, 2022
Premature baby may survive
Baby's organs and bones are visible through his skin, which has a red hue because of the developing veins and arteries beneath. He'll become less transparent as his fat deposits fill in. Baby is also developing surfactant which will help the lungs inflate if baby is born prematurely
Week 24
Week 24 of your pregnancy is Apr 30, 2022 - May 06, 2022
Baby's face is almost fully formed complete with eyelashes, eyebrows and hair. Right now her hair is white because there's no pigment yet. Between now and 28 weeks, the doctor should send mom for a glucose screening test for gestational diabetes.
Week 25
Week 25 of your pregnancy is May 07, 2022 - May 13, 2022
Baby is gaining more fat and looking more like a newborn. Hair color and texture is in place. His lungs are maturing and preparing for that first breath. You might feel the baby having hiccups.
Week 26
Week 26 of your pregnancy is May 14, 2022 - May 20, 2022
Brain-wave activity is on high That means baby can hear noises and respond to them with an increase pulse rate or movement. Eyes are beginning to open but they don't have much pigmentation. That will develop over the next couple months and may even continue to change until she's about 6-months-old.
Week 27
Week 27 of your pregnancy is May 21, 2022 - May 27, 2022
Start talking to your baby
Baby may recognize both your and your partner's voices. This is the time to read and even sing to your baby. She now has taste buds so when you eat spicy food, your baby will be able to taste the difference in the amniotic fluid. Her mealtime comes about two hours after yours. Feel some belly spasms? Those are likely hiccups from that spicy food. It doesn't bother the baby as much as you. Baby also has settled in to a regular sleep cycle, but it may be different from mom's.
Week 28
Week 28 of your pregnancy is May 28, 2022 - Jun 03, 2022
During the third trimester the brain triples in weight adding billions of new nerve cells. Senses of hearing, smell and touch are developed and functional. Your baby is having different sleep cycles, including rapid eye movement. That means she's dreaming.
Week 29
Week 29 of your pregnancy is Jun 04, 2022 - Jun 10, 2022
Baby can breathe
Baby's bones are soaking up lots of calcium as they harden so be sure to consume good sources of calcium. We recommend taking Nordic Naturals and Fairhaven Health supplements.
Week 30
Week 30 of your pregnancy is Jun 11, 2022 - Jun 17, 2022
Baby's brain is taking on characteristic grooves and indentations to allow for an increased amount of brain tissue. Bone marrow has taken over the production of red blood cells. This means she'll be better able to thrive on her own when she's born Baby is now weighing about 3 lbs and is 11 inches.
Week 31
Week 31 of your pregnancy is Jun 18, 2022 - Jun 24, 2022
Baby's brain is developing faster than ever and he's processing information, tracking light and perceiving signals from all five sense. She's probably moving a lot, especially at night when you're trying to sleep. Take comfort that all this activity means your baby is healthy. Mom may start feeling some Braxton Hicks contractions.
Week 32
Week 32 of your pregnancy is Jun 25, 2022 - Jul 01, 2022
Baby can focus on large objects not too far away; toenails and fingernails have grown in along with real hair. He's practicing swallowing, breathing, kicking and sucking. All key skills for thriving after birth.
Week 33
Week 33 of your pregnancy is Jul 02, 2022 - Jul 08, 2022
Immune system is maturing
The bones in your baby's skull are still pliable which makes it easier for her to fit through the birth canal. Your uterine walls are becoming thinner allowing more light to penetrate your womb. That helps baby differentiate between night and day.
Week 34
Week 34 of your pregnancy is Jul 09, 2022 - Jul 15, 2022
Baby's fat layers are filling her out and will help regulate body temperture when she's born. If your baby is a boy, the testicles are making their way down from the abdomen to the scrotum.
Week 35
Week 35 of your pregnancy is Jul 16, 2022 - Jul 22, 2022
Kidneys are fully developed and her liver can process some waste products. Most of her physical development is complete. She'll spend the next few weeks gaining weight and adding baby fat. Baby is settling lower into the pelvis preparing for delivery and this is called "lightening".
Week 36
Week 36 of your pregnancy is Jul 23, 2022 - Jul 29, 2022
Hopefully your baby is in a head-down position. If not, your practitioner may suggest an external cephalic version to manipulate your baby into a head down position. The vernix caseosa has now disappeared.
Week 37
Week 37 of your pregnancy is Jul 30, 2022 - Aug 05, 2022
Baby is considered full term
Baby is taking up most of the room in your womb so he's only kicking and poking you, no more somersaults. Baby is sucking her thumb, blinking eyes and inhaling and exhaling amniotic fluid.
Week 38
Week 38 of your pregnancy is Aug 06, 2022 - Aug 12, 2022
Baby's eyes right now are blue, gray or brown but once they're exposed to light they may change color or a shade. The lanugo, the fine downy hair that covered his body for warmth is falling off in preparation for delivery. Her lungs have strenthened and her vocal cords have developed. That means she's ready for her first cry.
Week 39
Week 39 of your pregnancy is Aug 13, 2022 - Aug 19, 2022
Baby is ready to make his debut. He's adding more fat as his pinkish skin turns white or white-grayish. He won't have his final pigment until shortly after birth.
Week 40
Week 40 of your pregnancy is Aug 20, 2022 - Aug 26, 2022
This is the official end of your pregnancy but because due dates are just a calculation he might be "late." No need to worry, your body knows the right time to go into labor, or your doctor may suggest you be induced. At birth your baby's eye sight is a little blurry since central vision is still developing. Just say hello and he'll recognize your voice.
Pregnancy Milestones
After fertilization and implantation, your baby is just an embryo, that is a set of cells from which all organs and body parts will develop. It will be exciting to see how fast your baby grows.
At the beginning of the second trimester, your baby is about 3 1/2 inches long and weigh about 1 1/2 ounces. Tiny, unique fingerprints are now in place, and the heart pumps 25 quarts of blood a day. As the weeks go by, your baby's skeleton starts to harden from rubbery cartilage to bone, and he or she develops the ability to hear. You're likely to feel kicks and flutters soon if you haven't already.
By the end of the second trimester, your baby is about 14-1/2 inches and weighing around 2 pounds.
Pregnancy Calendar and Due Date Calculator
Calculate Based On:How Soon Can I Take a Pregnancy Test?
A missed menstruation cycle is one of the earliest signs of pregnancy. That’s why we usually recommend waiting until you’ve missed your period before taking a pregnancy test. If you can’t wait that long and you know the day of your last period we can calculate possible conception and your pregnancy due date.
Did You Get a Positive Test? Here's What to do Next.
If you would like to speak to someone about your pregnancy, click the Chat now button below or call us toll free at 1-800-672-2296. You can also explore our numerous articles about how to have a healthy pregnancy.
