My mom is being over bearing already

Dani
So my delightful mother is being over bearing already and I'm only 9 weeks and 4 days. She demands to be in the room when the baby is born and demands to stay a week at my house when the baby gets here. 
I have told her numerous times that we will discuss this and that I don't want her at my house for a week when the baby comes. 
This is my first child and I want to learn and have to responsibility of taking care of MY baby. This is really irritating me. I'm going to let it rest for a little while but she literally bombards me every single day with the same crap!