Miscarriage on Nature throid

MM • 30. Married. Pug mom. 👼🏻 7/14/20. 👶🏻 8/5/21 🌈

My Hashimotos co worker miscarried yesterday at 8 weeks pregnant. She thinks it’s because of being on nature throid, because that’s what her midwife lead her to believe, apparently she only recommends Levothyroxine for woman trying to conceive. Please share your thoughts, personal experiences? Im in the same boat, same auto immune disease and med, TTC and worried if I do then I could also miscarry so I wanna be safe then sorry.carr