help me please 😩

Hey guys I needed your guys help 
So me and my fiancé I have been trying to conceive this are 4month trying and negative 😔 i was in birth  control before they took it off December 23 2016 am getting really scared am afraid that am. It gonna be able to have kids I was in birth control for 6 years 😭 can someone please help me should I go the doctors ?