Blocked tubes ? Clomid 100

Lindsay
How did people find out their tubes were blocked was it just a regular vaginal ultrasound - I had one done about a year ago it showed everything normal thick lining no cysts or fibroids wondering if it would have showed blocked tubes??? Insurance will not cover <a href="https://glowing.com/glow-fertility-program">IVF</a> I have Masshealth and have been on clomid with no luck so far- just finished 100 mg Last week before I was on 50 so let's hope this works!!! Any insight or stories are helpful