Someone please help me clear my head.

I had my 12 week scan and found no heartbeat.Had to have an emergency d&c.

Myself and fiancé where devastated.

We were trying for 11 months when we got pregnant. And we're trying to get over our loss.

Now my 50yr old MIL has told me she "accidently" got pregnant by only having sex one time in a whole month. Even though I know she hasn't taken any contraception for months. I am so bitter and angry with her. She smokes she drinks AND she takes cocaine.

Me and my fiancé are due to get married in 7 weeks. I don't want her there because she'll be drinking and smoking and I will find it so disrespectful but she is so selfish she'll only think about wanting to drink.

Someone please help. He wants his mum at the wedding and I don't. We are only having a small wedding with 12 people. So it would make a big difference if his mum wasn't there.

What do I do?