Clomid!

Has anyone been prescribed this to help get pregnant? We have been trying for almost 3 years, 4 miscarriages, had every test under the sun… and now I’m booked to see private gynaecologist again and I want to ask to try clomid… is this even possible to just ask for it? My cycle is irregular and I find it so hard to track any ovulation if any, how would I know if I wasn’t ovulating? Any advice very appreciated:)