Help?

I’ve been on birth control for 7 years. I got on birth control when I was 13 because of my very heavy periods and terrible cramps. I found out at 18 that I had endometriosis and a condition that I cant remember that puts me at a higher risk for miscarriages and pre-term birth. I ’ve been on different types of birth controls, the implant, the shot and now currently the pill. The pill that I’m currently on, makes it to where I only have a period once every 3 months. Me and my partner have been talking about trying to conceive here in the next year. So I was wanting to know if there Is anything I can do once I stop the pill to help make everything go back to normal? And how long will it take for my body to be “normal” again? Also, I haven’t had a regular period (meaning lasting at least 5 days” in about 4 years. Do you think that I will have trouble trying to conceive? I made an appointment with my ob but I wanted to hear any advice!