Still no period

Melissa • 👼🏼 waiting for my 🌈

I’m on cycle day 36! I’ve never had this long of a cycle. I took a test Tuesday it was negative. I also tested for ovulation during my whole fertile window plus a few days after kept getting negatives. I’m scared something else is wrong with me!💔I have hypothyroid and hashimoto I know this can effect cycles but I’ve never gone this long before. I had a mmc last April and haven’t conceived since. I have an appointment with OB next week. What questions or test should I ask for? And have you guys seen my period? If you do tell her I’m ready to start a new cycle 😂😂😂