Heeeelp pls !

Okay so, my boyfriend and I are trying to have a baby. Well I was on the depo shot for 2 months (I really regret it) and I’ve decided to get off... I know it takes a while for your system to get back on track I’ve done some research and what I find weird is that my second time going to get the shot I was a couple days off and I did get withdrawals but no blood well when I was supposed to go get it my 3rd time is when I decided not to go back and i feel like I’ve had my withdrawal (excruciating cramping that’s how I knew it was already time to go get my second one) well I’m now spotting last month it was for 3/4 days maybe and now this month it was only for a day 🤔 can anyone somehow help me out? Has anybody else gone through this (sorry if I made it sound complicated)