Hello i know this sounds dumb i have two kids and my youngest is 8 months old and i am one month late on my period i got it last on nov 4, 2008 that was the first day and it lasted about 5-6 days and it never came back i did not get it for dec. and now jan i took 2 home test and both came back negitive a few weeks ago i noticed that when i would have sex with my boyfriend right before bed my stomach starts to hurt and i get the feeling that i want to vomit but dont now i should know this because i have 2 kids my first was a girl no symptoms but vomit one time and a bladder infection five years later had my son i was sick by the book everything was bothering me it was bad. So i just need some advise if any one can help me figure out whats wrong could i still be pregnant no birth control has been used at all the only thing he pulls out but im not sure how good that works thank you