She can't stand it

My sister cannot stand not being the center of attention and it is seriously starting to get on my nerves more than normal. I am 36 weeks pregnant and like the month after she found out she stopped taking her birth control and wants to start trying with her husband when he's back from deployment 🙄 she's planning a trip to come to NY from Florida so my mom can watch her 2 year old while she goes to a wedding and she also says she wants to meet my daughter and stay until she is born. But almost every day she complains about only wanting to stay 2 weeks even tho I'm due 3 weeks after she gets here cause of her dog and money blah blah. If she doesn't want to stay she doesn't have to I'm not going to beg but it's becoming so annoying to hear this everyday. I'm not planning my labor around her visit and it seems like that's what she wants. The last time she was here we got into an argument because of a coat I bought and a bartender (at a place where I am a regular) was talking to me more. I was also single and she is married with a damn ring on her finger. Anyway I just hope she can stay in her place while she is here and calm the heck down lol idk maybe I am being crazy I just want us to get along while she is here but we are so different that it is hard. Anyway more of a rant than anything I hope I'm not being crazy for even caring 🙈