Well thanks for all the replies guys but it was a bit of a moot point. I decided to tell her and I may as well have not bothered. I got a txt along the lines of 'Congrats, good luck & look after yourself, Dad and I will be in SA house sitting at that time next year'.
So came home, sat on the couch and ate a packet of tomato chips and bawled my eyes out. DF got home and I told him I'd had a sneezing fit & he told me that was crap. So when I told him he says he's really not surprised that she did that and it doesn't matter what she says or thinks only what we do.

In a way he's right but she's still my mum so it's really dissapointing when she does things like this. And it's crappy when he basically says 'I told you so'. See she can be like this, when we told her we were planning our wedding she said she was happy than avoided it like the plague and never asked how things were going at all.

I mean why bother asking me if I needed her to be around in June, when I say that I do, she's making other plans anyway??? Gee it's their first grandchild and they can't be bothered????? Feeling slightly better after getting that off my chest, sorry guys probably mainly hormones anyway