I am currently on maternity leave after having our 3rd baby - who is now 9 months old. I suffered with PND after 2nd baby, which required meds/counselling etc. All has been ok since DD was about 2.
We live in a really small house and we do need to move but financially we can't do this until January next year (earliest) for a variety of reasons. DH is in the position where he works where he can pick and choose his overtime - his basic wage is quite good without overtime anyway. We would not struggle if he didn't work overtime.
Since having 3rd baby, he has worked A LOT. To the point where even DS1 is always making comments about him being in work all the time. DH's reasoning has always been 'we need to save to move' (we have saved some of the OT money, but not all). My wages have always just covered one big bill & even on mat leave this was covered so we've not been feeling much difference tbh (we're lucky I know).
Over the summer holidays he has worked most weekends. Even one week working 12 hour shifts for 7 days (his choice). Even when I've protested - reasoned about spending time with family etc, it falls on deaf ears. (I think he finds it easier to go to work than be home personally - he has commented to this effect too).
These past few weeks I've felt really isolated, with no support from anyone really when he is in work. Being off school & entertaining the 3 kids has been really stressful, I've not had a minute away from them, no time to myself really. Last week I got to the point where I felt really low, feeling anxious/stressed/frustrated. Although DH knew I'd been feeling stressed he'd still continued to do overtime. I was brutally honest & told him how I'd been feeling, thinking if he knew how I was feeling, things would change. I even asked him not to work this weekend.
All I've had in response is his usual excuses/reasons & a 'short term pain for long term gain' 
Surely my mental health is more important than money?! I'm not asking for much, just a bit of understanding & support. I wouldn't mind if it was every now and then, but it has been most weekends lately. AIBU?!!