mother in law advice

So this is my current situation. My husband and I just moved back to his home town after being stationed across the country. We moved in with his parents for the time being because we are building a house. Well unfortunately are baby's due date is a month sooner or more earlier than when are house will be ready. Now my in laws are very loving but very over bearing. His mother still acts like my husband is a teenager who can't even remember to take his medicine. I swear she would start breastfeeding him again if she could. She is that overbearing. Our parenting styles are completely different and I don't know how I am going to handle having a baby under her roof without killing her. She already is imputing things about how to raise my baby. Someone please help me find a way to deal with her. I can tell I am going to probably burn some bridges with her very soon be I won't be very nice. Thanks for reading my rant.