Since a withdrawal bleed isn't a true period, is it possible to be taking birth control and been that 1 in 100 women that somehow gets pregnant, and still have withdrawal bleeds? The last time I had sex was early August (after that we decided we would not have sex until we get married). I take my combination pill religiously (if anything, once every few weeks I'm an hour or two late) and we ALWAYS use a condom. Only once, July 19, did a condom break, but he pulled out within the minute and had not ejaculate That freaked me out, so I went to the doctor August 30th for a test, and it came back negative. Occasionally I took a hpt couple weeks following, and they were always negative. I took one a week ago, and it was negative as well. I had my withdrawal bleed in October, and then in December. I switched birth control brands in early November (Gildess FE 1/20 to Lo Loestrin FE 1/10), and I actually had two bleeds in December. The first was like a typical one, but the second was nearly all brownish rather than red. When I switched birth control pills, my breasts got a bit larger and I'm bloated it seems all the time. I haven't gained any weight though, if anything I've lost some because I also kinda lost my appetite in December (I'm 5' 3" and weigh about 128 lbs; I'm a gymnast and have a muscular core and that hasn't gone away either) I know these are all typical side effects of BC, but I'm still paranoid, even though I've always gotten negative tests.