Can you ovulate 3 days after your period? So i had unprotected sex took the morning after pill as i was due to ovulate then i got my period. On the first day of my period i had unprotected sex again and he ejaculated in me.. 3 days after my period ended i got bad cramping then spotting when i had a wee (it was a light pink color) i put a tampon in but when i took it out an hour later there was no blood on it and i didnt bleed after that but i have been getting mild cramping ever since. Could it have been implantation bleeding?