I understand your situation. I'm 15 weeks pregnant and my MIL is very religious (Jewish). My husband is also orthodox, and he's become more religious, to the point they've shamed me for distancing myself from religious life, and are convinced that I tricked my husband into marrying me.
It's hard. I also am contemplating divorce, especially seeing my husband's priorities being religion and not the well-being of his wife or future child. To the point that he uses religion as an excuse to "discipline" me, which borderline crosses into emotional abuse. Not physical, but difficult nonetheless.

It's rough. People have messed up priorities. How is your family in this situation? Are they supportive? Do you have the resources and ability to leave if needed?
My heart goes out to you. Pregnancy is difficult. And having a MIL/Husband who do not value your mental, emotional, or physical well-being, is so so hard.