Am i overreacting?

I need a bit of support and reassurance as not sure if I'm over reacting or not.

I'm 26 weeks pregnant, I have a 16 month old toddler and a dog that requires lots of exercise. Since about 10 weeks this pregnancy I've had bad PGP meaning I can only walk the dog for like 30 minutes at most with toddler in tow. So my husband has to do a lot of the dog walking.

He is a good dad and generally helps out a lot around the house, but I don't think he really understands the toll pregnancy has on my body, both physically and mentally.

Anyway, the other day he met up with his friends to go out for a golf day. He was meant to come home straight after but messaged to ask if I would be okay with him going out for a drink. To which I said yes but let me know so I can order in some food for myself.

3 hours then passed, no sign off him. Our toddler wouldn't settle for bed, would only settle when I was cuddling him. I messaged my husband to let him know this and he was like thats ashame ill come home in next 20 minutes. A further couple of hours went past and no sign of my husband but my toddler eventually settled. 3am he finally strolls in, wakes me up, decides to take the dog for a walk and then sleeps on the sofa. This morning when he could see I was visibly upset and inconsolable (I had to get up with our toddler at 6am) when he was in and out of sleep on the sofa, his response to me shouting at him to get up was something along the lines of "Well now you can see how much I do around here."

I was at the point where I was hyperventilating because I was so annoyed and upset. pregnancy hormones definitely do not help but he has yet to apologise. Am I overreacting?

I want him to be able to go out and let his hair down, have a good time. What upsets me and what I dont appreciate is that everytime he says he is going out for 1 drink he comes home at stupid o'clock off his face drunk and the whole next day is wasted because he is hungover and can't help me with the dog and toddler. That and the fact that he said he would be home soon when I told him our son was not settling and I was struggling, only for him to stroll in 4 hours later.

Thanks for reading if you made it this far. Just needed to rant.