Implantation Question

Hello so my boyfriend and I been having unprotected sex for about 7 months now however in the first 2 months I was on BC and I stopped taking it because he wants to have children soon and we are ready for the parenthood life. My period has been normal since I been off BC however my period is normally a week long this last time it was 2 days and had spotting for 2 days and for the first time i had no period symptoms. We did have intercourse during my ovulation window and 3 days before my period started.

I have very mild pregnancy symptoms such as a sharp pain in my boobs that come and go but it’s never too painful and mild cramping. I’ve gotten these symptoms a week after my period. Can implantation acquire while you are on your period?