Am I being hormonal over my SO’s mom?

I’m currently 37 weeks pregnant tomorrow so if I am being hormonal please feel free to let me know. My boyfriend & I have recently moved into our first apartment. We’ve been here a little over one month. We’re young so we gladly offered help the first few days. His parents and mine helped us move, clean & bought our first weeks groceries. Now that we’ve been here some time we have handled things on our own. We pay our own bills, buy our own groceries & keep our place nice & clean. We even set up the nursery by ourselves. I’m feeling smothered by my boyfriends mom though. She wants us over for dinner all the time & is always trying to make plans in general. I feel like we haven’t even moved out on our own. I am more than thankful with everything her & her husband has provided but I feel like she thinks we’re incapable of anything. She wants to come over next week to clean our windowsills. OUR WINDOWSILLS! I feel like I should be graciously accepting their help but come on. I’m capable of cleaning my own windowsills, which are only covered with the thinnest layer of dust. I’m worried that it’s only going to get worse once our daughter comes. I just need to be given the opportunity to do these things on my own, Grow up & figure it out.. Am I overreacting?