MIL coming

My baby is a month old and my MIL is coming into town in two weeks and I am not looking forward to it. She usually stays a week and comes ever month to two months. When she left when the baby was born she keep telling me she was going to have withdrawals. I just makes me feel guilty about saying no to her or limiting to visits she wants to have. If it was up to her she would prob stay two weeks. I really enjoy the family time I have now with my husband and have grown to not like company as much as I used too. A lot of times it just messes with any schedule we are on. My husband finds it really difficult to tell his mom no because he worries that it will hurt her feelings. I wish it didn't but just thinking her about coming stresses me out. She is a lovely lady but usually I will have more dishes in the sink and her stuff lays on our counters and sometimes I feel like I have to host and I am in no mood to host anyone. We have a five year old daughter who has really been testing the boundaries since the baby has arrived. Lying about what she is doing or goes on at school and doing stuff on her own terms. She goes to her moms this week and then next time she comes back my MIL will be here and his daughter takes advantage of her unknowingness. Asks for things she doesn't usually or knows we don't in this house. It's just hard to have my MIL come and keep the same environment. Her mom runs her home with different rules and boundaries. Sorry I just needed to vent. I have a nonexistent relationship with my own mom and really cherish the alone time I have with my daughter and it can be hard to share her for long periods of time. Needless to say I am not looking forward to this visit.