Can’t deal with the bs and stress

My MIL had a literal tantrum yesterday because she hasn’t held my son in like a week. She was slamming the microwave and being loud to let me know she was mad but I really don’t give a shit. I have a 17 month old who has a schedule and I’m sticking to it. I’m not screwing up his routine just so she can hold him. She’s so overbearing it is ridiculous and acts like a child and cries because she hasn’t seen him in a few days. There’s people that don’t see their grandchildren at all. Honestly her acting this way just makes me want to not spend any time at the house or let her see him. I have a life and I’m 14 weeks pregnant with triplets, I’m not dealing with a 40+ yr olds tantrum.