Congratulations!!! How fun to be having twins!!! I know you will be fine. My friend has 4 BOYS... Ages 5, 3, and she just had twin boys in July. They completely restructured their life. She now is a SAHM, works in her 5yo class once a week. Takes all four kids to the movies, etc. She thought it would be overwhelming, and it is sometimes, but she said with a little practice and organization it's still a lot of work, but easy. I wish you the best of luck and know you'll do great!!! Just think, now you get an ultrasound every visit!!!
Btw, she's still breastfeeding her twins all but one feeding a day... Just saying!! (Gotta throw my pro breastfeeding out there)