I had unprotected sex with my S.O the day of ovulation and the day after, he did ejaculate both times, 3 days later I decided to take a plan b, the next day I had pink spotting on my tissue when I wiped, later that day I had light brown discharge and then I had a white-ish creamy discharge. Then after, for the next to days I had pink spotting during the first pee of the day when I wiped only. Could this be from the plan b or pregnancy spotting ?