bleeding for no reason

Irene
The last week I masturbated in the shower.( sorry for the very detailed stuff) and after I climaxed i started to bleed, the bleeding continued on and off from the 8th till today,I finally stopped bleeding but i masturbated again tonight and I started bleeding again, what do I do??? My boyfriend is very concerned and so am I , I also got the implant at the beginning of last month. Can anyone help me , or give me answers, or advice!!!!