Mother in law, I mean monster in law!

Ok ladies is it the pregnancy hormones making me so angry at this lady or do I have good reason? She has downloaded an app on her phone to track the pregnancy and baby. My 1st issue with this is she is not pregnant so why TF is she using an app to track the baby?!?! Sorry that technology wasn’t around when u were prego! The next issue I have is when we start a new week and the app tells her the new size of the baby she sends us a group message about the changes in her grand baby. Ok I know she is excited but my fiancé and I don’t get to enjoy these moments together cause she ruins it every time! Next issue. We aren’t sure yet if we are going to tell our Lil one if Santa is real or not. We want our child to understand the meaning and importance of Christmas rather than think it’s just another consumer holiday..... this crazy lady has told us to our face that she will tell our child we are liars if we tell it that Santa isn’t real. She lives in fairy land/dream land and thinks the rest of us should as well.... would these things piss you off? Is it just my raging hormones? First time mommy to be and seems like his mother is making this so un-enjoyable that I wish I hadn’t got pregnant sometimes!!! She thinks she is supposed to get more time with the baby than my family cause it is her first grand baby. It’s not my moms first grand baby, but it’s her first grand baby from her daughter and I am her baby! I trust my moms a lot more cause she’s level headed and would never tell my child I am a liar over something like Santa. Sorry ladies I’m on a soap box this morning!!!!