The most successful

Hey guys I finally got an appointment to so see a reproductive/Endocrinology and fertility specialist and I’m excited. Since my last miscarriage in August 2017 my period hasn’t gone back to normal. I had my period for 47 days straight, stopped in December and now it’s back and on 2 1/2 weeks now and going. I’m going to meet with her next week Thursday and I want to deal with my crazy cycle first then try to see how soon I can get pregnant again, my concern is which of these procedures should I do. My insurance covers them but only for a few tries and I want to get the one that will ensure me getting pregnant. Has anyone done any of these and was successful? And I don’t want to have multiples, 1 or twins are fine but not 3 or 5 at a time. Need you’ll opinions, thanks.