Do your breast still get tender a week before your period when you’re on because? I’ve just started to take because not to long ago (still on my first month) and I’ve had unprotected sex with my boyfriend and he came inside of me three or four times. Now it’s about a week before I should start my period and my breast are tender well just my nipples are.. . Is it because of the because or what?

Didn't the doctor tell you that it needs at least two months to take affect in your system. Your sexual activity ("coming inside") wasn't the best of ideas on your first month of birth control. And it's really not a good idea after that either, to be perfectly honest.

Your breast tenderness could be from a number of things. Go to your doctor and find out.

The doctor told me after 4 pills it would work.. . But he also said that my antibiotics can lower the effectiveness.. . And I was just asking because my breast usually get sore before I start but this time it's just my nipples that are sore so I guess it kind of got me worried

I've always been told to wait a month or two after taking it every day the same time to do anything. And also antibiotics lower the effectiveness A lot, I was always told to just pretend that I hadn't taken the BC.