Ok so dh went out last night at 11.30, said he was only going for a few pints and would be back soon so he could still help out with the kids in the morning (36 weeks pregnant and struggling to shift my fat arse at the moment)
To cut a long story short he's still not home. He was out two nights last week so it's not like he's desperate for freedom, he knows this sort of behaviour is a issue for me and it's something we've been arguing about recently. Apparently just because I'm pregnant, tired and insecure he should still be able to do what he wants (his words).
I also found out after some detective work on Facebook that the girl he added a few weeks ago who was 'just someone from work' turns out to be a girl he met at a nightclub.
Right now my head is up my arse, I'm sick of him promising he will change and everytime he goes out it turns into a massive bender. Right now I just want to start packing his shit up for when he eventually crawls back. He can never just have a few pints at the pub and I think what's worse is the lying about him not going out late and now who random girls are
and I've just realised while typing this he's took my card and keys! So that's me and the kids stuck in the house 
Sorry for the rambling I'm far too embarrassed to talk to anyone irl about this