Mother in law comes over every weekend!

Is this fair?? I just need some advice. My husband works a lot 5 days a week leaves early comes home late. Which is fine he’s working. But that means I get 1 day with him as a family and with the kids. Every single weekend he wants to pick up his mom and bring her over to our house the entire day! I didn’t even get to go grocery shopping for the week and now this lady is coming over! By the way this lady is crazy and didn’t even want her son to be married cuz she wanted him to do everything for him. Anyways I’m not going to go into detail of all the mean things she did to me. That’s in the past! But is this fair I get 1 day with my husband and she gets the other day????