Help please

So exactly a week ago my bf and i had unprotected sex 3 days in a row and he came in me each time. The first day was on the last day of my period bc it was super light then a day after that we had unprotected sex again and he came in me again now three days ago when i wiped there was clear jelly like discharge with dark pink spots. The second day the same thi g happened but the discharge was light pink and today it wax brown and this only happened once each day what is this. I am also experiencing cramps in the lower abdominal area.