Am I overreacting?

Me and husband got married in 2013 and my MIL started pressurizing me for a baby since 2014. Mind you she did not utter a word about it to my husband. Her questions turned into demands.. and then suspicion that something is wrong with me and I cant have kids.

We were visiting them for my BIL’s wedding in feb 2020. So she booked an appointment with HER gynac so she would know whats wrong with me. I did not argue as i did not want to ruin my BIL (by the way he also said i am 30yrs OLD and now i wont be able to have kids).

We come back to Sweden and Found out that we are pregnant. We decided we will tell families only after 12 weeks. I was 11 weeks in when i found out babies heartbeat stopped at 8weeks. I think the flight travel during early pregnancy must gave cause chromosomal issues. Anyways.

Doctor gives us a go ahead to try again and to our surprise we got pregnant in our second try. We decided to tell my MIL as she is religious person and I wanted all the prayers i can get for my baby. And all hell started breaking loose.

She would call every saturday and tell me that we will loose this baby as well cause we tried too early. Mind you EVERY SATURDAY.

I would end up crying and worrying.

Now my son is 12weeks old and she wants to visit us. But i seriously have no interest in her meeting my son. Am I being unfair?