u/External-Ad-1538

I was having sex with a fling (not a girlfriend or anything). She claimed to me she's on birth control but I have no definitive proof (she wanted to have sex without a condom but I said no) when I finished and pulled out I realized the condom came off. She pulled the condom out and it appeared to catch a lot of the semen so I think it came out at the end and make was in her for less than a minute (she was vertical the entire time). We went to get a plan b and she took it within 1 hour (she also wanted to get it). She said that the next day was her sugar pill day and she usually gets her withdrawal bleed the same day. Today is placebo day 2 and I haven't heard anything from her about her period. Do I have anything to stress about?