Implementation bleeding?🩸

Please help I’m freaking out !!!! Could this be implementation bleeding or just my period starting??

*my bf and I were messing around a week ago and he said he didn’t cum or have Precum

on him but he touched his penis to the outside of my vagina and then fingered me after (not penetration from his penis I’m a virgin still). But I just keep thinking the worst that he somehow had pre cum on him or something and I can’t think straight. Someone please give me some clear advice!!!!!

Edit** my period is due today but it started yesterday afternoon. Also I’m on the pill and I’m very good about not forgetting to take it and I take it every day at the same time !