My Dd (17) has been recently diagnosed with this. She's to start progesterone on Day 5 of her period. Well that would be fine if her period wasn't late and may not come at all. So the Nurse said today they will scan her in a week then give her something to start her period. It's so shit for her just now. She has an Underactive thyroid too and has just started off meds for that too. Tonight she's white as a sheet feels sick and it's nearly her exams so she's pissed off she can't revise. How long before this all gets better?