I’d really appreciate some help 😞

How do I go about telling my doctor what I want done? I don’t know exactly what to say, ask or even mention. I really don’t even know who to go to a obgyn or a primary care physician. I had a vaginal ultrasound done 3 years ago and was told I’m borderline endometriosis. I know I have terrible cramping that started about 2 years ago. I’m 22 now. Had one baby nov2014. Been trying to get pregnant for 2 1/2 years now. I don’t know if I even ovulate. However I haven’t ever tried tracking any ovulation or anything. Ovulation on here says tomorrow is my peak based off a 27 or 28 day cycle. I’ve managed to lose about 70 pounds. Down from 295 to 225 in 4 months. So my period wasn’t as long this month. 9 days (20th-28th) to be exact instead of the normal 3 weeks. I had sex last night but cramping pretty bad now usually I don’t cramp after. I don’t really know how long my cycles are being so different now since losing some weight. I would like to know what all I should mention to the dr. I’m sorry this is so long but I really need some help. I’m in circles of depression and bad anxiety cause idk what’s wrong with me.. Please help if you have any suggestions.