my last period was 3/1/12 I was suppose to start my nxt one on 3/29/12 but missed it around 2 or 3 weeks ago I took a cheap pregnancy test n got a negative so didnt worry about n still didnt get my period. im suppose to start my next period today but havent notice anything but I have been having alot of cramps today. and lately been having headaches and nauses. can I possibly be pregnant or is there something wrong with me