I am not married but I will use MIL to save time/brainspace.
I had an abortion and my MIL has told my partner that I am lying as women today do not get surgical abortions, she "checked the NHS website". I feel so upset and distraught. He believes me of course but he let me know because she has been haranguing him about it. The worst part is that i was just starting to move on when this was thrown at me and its brought it all back up. I find it shocking and deeply upsetting. I dont know what I should do about it.