Disrespectful mother in law

My husband and I separated for a few months after 8 years of difficulty but we ended up working things out. We moved back to our home state and decided to live with his parents until our house was ready. The day I had a miscarriage she brought to my attention that I didn’t put food in the house the way her husband did, however I put $500 worth of meat into the freezer 4 days prior.. I told my husband of all days today was the worst to air her issues, I decided we should move in with my family. He told his mom and she came into the room we were in and started screaming at me. I told my husband to pack our things, then in front of our children (6&7) she screamed at the top of her lungs you’re really going to leave because of that fucking whore along with bringing up my previous self harm issues.. We left immediately and he hasn’t answered her calls or texts since.. However today she texted and told him she wouldn’t beg to speak to him and told him he knows she’s right.. I’m grieving my 4th pregnancy and now having to deal with this, when my self worth is already at an all time low. At this point I honestly don’t know what to do. I’m very depressed and can’t seem to stop thinking about it and crying every time. I don’t know how to process things right now.. What should I do?