I'm so upset with my mother. She asks me and hubby to babysit all the time which I really don't…

I'm so upset with my mother. She asks me and hubby to babysit all the time which I really don't mind. But she lies a about when she needs us! like last time she told us she needed us from 9 am to 3 pm. The night before she text me at after midnight saying oh yeah be here by 8. I woke up at 5 ish to pee and she had texted me again so better be here by 7! well I live an hour away so she's lucky I made it. The. it's getting close to 3 and she's nowhere around. I call and she said oh I'll be back soon. We'll hubby works at 5 so we gotta go. She called back at 3:55 said she's not coming home till after 5pm so make hubby leave me! I was livid.

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Well Monday she asked us to babysit tomorrow [Thursday] from noon to 3pm. I said I could but I have a prenatal appointment at 11am that day so I can't any earlier. Tuesday we went to her for her birthday and she said she didn't need us to babysit. I didn't hear from her all Wednesday until after 9pm. she asked what time we were coming. When I asked her why she said because she needs us to babysit. I was frustrated but said I'd be there at noon and she said no I need you at 7am till 3pm! I told her I can't I have my prenatal tomorrow and she got all mad she would have to cancel her plans and made me feel so guilty. Now hubby and I have to go over at 7am tomorrow. It's a freaking hour drive and hubby works but I can't drive so he has to wake up and go with me at 6am! and because we have to babysit I have to go to my appointment alone! I'm so angry. This is the only child hubby and I plan on having and now because my mom is being this way he can't go to our babies appointment.

You can't even talk to my mom she just gets rude. but she's my mom :/