DM's always been a bit funny about my pregnancies. She seemed disinterested when I told her I was pregnant with Calf & when I told her about Runt she went very quiet & said, "I thought we were going to wait a bit longer... I don't really know what to say..."
Firstly, she's not part of the "we" who get to decide such things; secondly, I'd always said we'd wait at least 9m between pregnancies but that I wanted them close together & I was 8 weeks when Calf turned 1; thirdly, is "congratulations" really such a hard word to say?!
To be fair, the clips I showed them were ones that I'd filmed of DH dealing with him. They do adore DH, to the point where I feel like he could leave me for someone else & they'd imply it was my fault for not taking him back, even if he didn't want to come back. Just before we got married, Dad said "I don't look at it as gaining a son, more getting rid of a daughter." Hilarious. 
There has never been any suggestion from them that I'm being reasonable to expect DH to prioritise coming home in the evenings. They're very much of the view that he's the man that does the hard work to earn the money & my job is to support him in that. Never mind the days when Calf's behaviour leaves me sobbing, it's still fine for DH to be faffing. I've tried venting to Mum about it, she said "Hmm, it is difficult." She meant for him.
We did have quite a good conversation about home ed though, which is a first. They seem to be coming round to the idea. Probably because DH thinks it's a good idea.