Need advice..

Almost two weeks ago, my SO came in me, but it was the day after i was done ovulating and it said i had an 8% chance of getting pregnant, AF is supposed to start tmr but ive had no signs at all, my boobs aren't "full" like they usually are or anything like that. Wasn't planning on TTC but would be very okay if it did happen. Has anybody had this situation? Could i be pregnant?