Hey! Can anyone help me? I think I may be pregnant, but the chances are next to impossible. I think...Anyways. I started doing the southbeach diet the last part of may. I'm not sure if this has anything to do with me not having my period yet. The first day of my last period was may 27th and it ended june 3rd. This has been my last period and it's almost the end of july. My periods don't come every 28 days. It's usually around 42 or so. The couple of times my husband and I have had sex have been with a condom. I'm not taking any birth-control or on any type of medications. I just had a baby 8 months ago and i'm a little worried. I took a home pregnancy test on july 21 and again on july 22, but both tests were negative. I've had a yeast infection for the past week and a half and theres no signs of spotting. I'm supposed to get my 2nd hepatitis shot for college on july 26th and I don't know if I should go through with it or not. Consequently, I had my first one done on june 24th which also makes me a little worried if I could be pregnant. Help!