(no judging please) another girl gave a guy oral, he came in her mouth, she brushed her teeth and about a half hour passed, then she gave me oral...what are the odds that sperm survived that journey and impregnated me? This happened last night so I haven't had any signs/tested whatever. I'm on birth control but I missed taking it a couple days last month, and as far as I can tell that means it basically wouldn't be working. I was also in the "period week" where I'm only taking iron pills, not birth control, but I wasn't having my period because I don't get a period on the pill.