I was on BCP for approximately 10 years with two or three breaks of 1-3 months in that time.

I came off BCP 6 months before starting TTC just to see what my body did. Fell pg first month trying. There seems to be genetics on my side though because my mother always fell in the first or second month of trying.

I think like others have said that it could depend more on you/your body/cycle as well as your partner's reproductive health than the length of time on BCP. I have friends who have taken longer to fall pg with less time on BCP than me. What were your cycles like before going on BCP?? That will probably be your best indicator of what they will return to. Sometimes BCP 'hides' cycle problems.

You should take folate up to 3 months before TTC, but one month is also ok I think. I took Blackmores Conceive Well but I wanted all the other vitamins and things like iron as well. The straight folic acid is much cheaper.

Good luck - I hope your TTC journey is short