How long to ov after 3 shots?

Ashley • ❤️🧔‍♂️👩🏼2x👧2x👦TTC#5(5x👼)❤️

Basically title. I am 55 days until my last shot is ineffective and my hubby is talking about another one. I have no reservations about this. If I stop taking the injection, what are your experiences with coming off the meds and how long it took to get your BFP? I am 35 and plan to concieve #5 if that makes a difference.