I've been bleeding for 7 days while on birth control pill?

It's getting so annoying I started birth control around November 11 I'm new to bc so I'm not used to the pills yet. I'm not used to taking them at the same time everyday November 14 and 15 I missed the pills and had unprotected sex then I started bleeding like a period I guess my period came early because I'm not even on the sugar pills yet then on Monday and Tuesday I had to double up. Wednesday I took the pill I missed it again on Thursday and Friday had sex again and till this day I'm still bleeding and the bleeding isn't getting anywhere lighter I thought it would of slowed down by now but no every morning there's always blood so I don't know when this bleeding is going to stop I'm not use to bc yet is it normal to be bleeding so much like this?