Low bbt?

Sierra

I recently started taking my BBT, and I've noticed that pre-ovulation my bbt stays pretty low, like 96.53-96.7. I read that this can be indicative of hypothyroidism. Does anyone have experience or advice with this or can it be normal? Just started seeing a doctor for infertility and will be taking my 3 day labs once I start my next cycle. Can they find this out during this test or do I have to request it?