Can't stop crying..

I have a 4 year and a newborn daughter that I love so much and my 4 year old son is not my husband child but he love him like he is. Our daughter Is 2 weeks old which is supposed to be a happy moment is not a happy times. My stepmom requested since she doesn't live here that my mom and my husband mom don't come over since they need their time with the baby, but my husband told his mom whenever she wants she can come over. She even have a keys to our home and she just come in without knocking, but she will make sure I home. My husband and I are newlyweds, but his mother acts like I'm married to her as well and I think its supposed to be my husband job to put his mother in her place, but he acts like his mother can't do wrong. For instance, around Christmas time I wanted to share putting up the Christmas tree with my son, but while I was at work she put up the tree with ointments on the tree. Then during delivery I allowed her to be in the delivery room, because my mom wanted to be in there, but she had the nervous to say she didn't like how my own mother was taking picture of me giving birth, but he didn't take up for my mother and he stood up for his own mother and justify why she said it. I thought when you get married the spouse supposed to come first.but I bring up my concerns but he acts like my concerns don't means nothing and he thinks I don't like his mom