White discharge before my period an on birth control.

jess • •24• •class of '18• 🎓🤘🏼 an I go on this app to keep w my sex life and other girly things! 🌸💃

So I start my period in few more days but im on the birth control pills w the 7 placebo pills. But every middle of the month or the end I always have alot of white thickish like discharge.. I heard birth control has something to do with this? Plus I take it everyday at 7:10 PM.