OKay, heres the thing. I've been taking birth control pills so i figured that it would be okay if i had sex with my boyfriend without a condom. Well it was my first time so i have been bleeding for like 5/6 days after. But the problem is i dont always take my pills 24 hours away from eachother, i just take it once a day. watever the time. My boyfriend didn't use a condom but he did pull out. And after 5 days of having sex ive been have serious stomatch pains and cramps. What's going on?