<human>: Provide a brief overview of the text.

Last year, my SIL gave birth to the first grandbaby. About a month before she was due she sent an email to the family saying that her doctor told her that no one should be visiting without the flu shot or whooping cough vaccine.  I don't believe in vaccines, and I was not about to get them because she told me to.  Now I've always had a great relationship with her and my MIL, so I expected that I could be an exception and I just wouldn't go if I was feeling ill to meet my nephew.  Wrong.  She didn't back down, and her mom backed her up, so I didn't get to meet the little guy until he was 2.5 months old and he had his first round of vaccines.  I realize that I can't control her family, but I can control mine.

Now I'm the one due in a couple of months, and I told my husband that I don't want my SIL to visit until the baby is 2 months old.  He says that I'm being unreasonable  (he didn't stick up for me at all when his sister said no),  and that she did it for medical reasons and that I'm just trying to get back at her.  I don't understand why he can't just have my back on this one, we're supposed to be the team, not him and his sister.  I'm so pissed off I'm thinking about blocking him from visiting me in the hospital too!  How can I get through to him that we're supposed to be a team, and that he's my husband first now, and her brother second?
<bot>: My husband doesn't take my side when we have disagreements with his family.  I feel like I'm all alone here, and that my husband should support me.