Anyone on birth control and has endometriosis?

My bf wants me to go on birth control and before he even told me I had been thinking about it. Not sure which kind yet so feel free to offer me some.

I'm kinda worried though because i do want to have children some day and I'm afraid it will take longer to get pregnant because of the pills.

I know it will mess my cycles and this is a reason why i had never taken it before.