50mg clomid

So guys.....  need a little bit of feed back as I'm a little confused at the mo. 
Me and my partner (same sex couple) are currently going through the amazing journey of <a href="https://glowing.com/glow-fertility-program">IUI</a> together, last period I've just done 5 days cd2 - cd6 of 50mg of clomid, went for my ultra sound to find out I had 3 mature follicles and if I was to have the insemination I would catch on with triplets without a doubt as they was extremely big, so next period I have to take half a tablet so 25mg nurse said if my follicles are the same next time we have to get the doctor involved. What does this mean? What will the doctor possible say or do?