Bleeding????

Dana • Proud mother of 4! Baby #5 on the way!
Okay so I need some advice ladies! I had the implant in my arm for about a year I got it taken out June 9th because me n my DB decided we wanted another baby. So I got it out when I had a period. That ended that Friday I believe June 12 since then me n DB have been having sex bit it seems like everytime we have sex I start bleeding. I had another period that was very very heavy start July 2nd and ended July 7th. I have no signs of bleeding until we just had sex today? Has anyone had this happen?