Just over a month ago i had unprotected sex but he pulled out and 2 days later i started my period which was on time for my cycle and 3 days after the sex i took the ella one plan b just incase. However i’m now a week late for my period which is unusual for me as i have never been late in my entire life. I had a tiny bit of brown in my discharge at the start of october but that’s all. I have no symptoms of pregnancy and id be around 5 weeks if i was. I’m gonna take a pregnancy test tomorrow but i’m just wondering if it’s likely i’d be pregnant since at the time of my cycle that i had sex my fertility was very low and i took plan b. Could it be the pill which has made my period late?