Hello , so Jan 31st and February 1st I had

un protected with my bf . Both of these days he came inside of me . Due to it being the weekend I couldn’t get a prescription from my doctor to get a plan B since the doctors office was closed . Therefore , I didn’t get to take a plan B till Monday afternoon. I would like to add that I suffer from PCOS so I usually get heavy painful periods that at times can be super irregular. Therefore I never really know exactly when I’m ovulating , which is why it’s known unfortunately for women who suffer from PCOS have a hard time getting pregnant. Anyways , these past few weeks since the unprotected sex I’ve been having my regular PMS. My period came Monday feb 10th. It was pretty light w minimal cramps but that’s normal for me on the first day , usually the 2nd is when it becomes full blown . Day 2 it was still very light and only a little bit of blood was in my pad. Well today is day 3 and I literally have no period just a bit of pink when I wipe . It’s pretty much non existent . However, my boobs feel more sore today and I have a nauseous feeling and I just feel like I’m on my period without the blood or cramps. Could this be the plan b messing me up or could I be pregnant?