Question about birth control

Jeana

I’m 36 years old, ttc with my husband he’s 31 and are both slightly obese but we are ttc our first child together I’ve birthed 2 children ages 14 and 11 now with there dad my first husband of 14 years who passed 2 years ago well I have pcos and I’ve always had irregular periods well I’m on birth control and I just had AF on 2/18 for the first time since September of 2017 well is it possible that if I take it couple more months and get off the birth control that I will be real fertile and have better chance of getting pregnant ?? Just looking for advance. Thank you !