Mother in law

Amanda • 32 and pregnant with my first! My husband and I are expecting a girl in the beginning of June!
My MIL stated to me today that she hopes I know she will be in the room when I deliver. She stated that she hadn't missed any of her grandchildren being born and that she doesn't plan on it being any different this time.... This is my first child and I had not planned on having anyone in the room except my husband, the doctor and hospital staff. My MIL has no filter and says whatever she wants whenever she wants. I am not comfortable with her being in the room and need to speak up and make that very clear. This has been hard because she seems to think that since she was present for her daughters two births and my husbands ex's two births, that automatically means she will be there for this one. She went as far as to state this to me and then say, "so don't think it's gonna be any different with you..." She really intimidates me and I know that I really need to stand up to her and say something. I'm not looking forward to this at all. I know she will give me a guilt trip, but I'm just not comfortable. I hope she can understand that, but by her statement today it seems unlikely she will! Any suggestions? 
***UPDATE***
My husband and I spoke with my MIL today as I did not want to give her the misconception that I was ok with and agreeable with her previous statement. We simply told her that we want to share this experience with one another alone and that once the baby has arrived she is welcome to visit as soon as we are ready for visitors. As expected this did not go that well. She attempted to guilt me into changing my mind and try and make me feel bad about this decision. Like many of you suggested, which was quite helpful, we are planning on informing the nurses and having them handle that when the time has come. It's definetly not something I need to stress over so after speaking with her, we know the best thing here on out is to plan on having the hospital staff help us out. 
Thanks for all your advice and responses ladies!! 😊