For those that have obviously went to a fertility specialist...

What kind of testing did they do?? Anyone already have a child through medically-assisted fertility?? What was the reason you couldn’t conceive naturally? Anyone have a MC and go on to have a healthy baby? Sorry I’m just overwhelmed. I had a MC back in January at 8 weeks. I had an ultrasound and everything looked great. My husband did the sleek analysis and everything came back great. My TSH is 4.0 so I’m on 50mcg of thyroid medicine. Have to schedule my HSG for next week, which I’m terrified for. Anyone have blocked tubes and go on to conceive? Any insight/experiences on anything would be greatly appreciate!