Worried about infertility

Saphron • 💚II.VIII.MMXIV 💚
I always have unprotected sex with my bf (I'm on the pill tho) but don't always take it properly and he always comes in me but Iv never gotten pregnant in really scard I could be unfertile and never be Abel to have children witch is my dream! Is there any way to find out if I am or not? And change it?