Backstory:
DC1 is 3.5 (difficult pregnancy, birth and first couple of years).
I didn't really want any other children, husband did. I fell unexpectedly pregnant earlier this year and at first husband was significantly happier than I was. Now since I've become totally on board with the pregnancy he is uninterested in me or DCs.
I am supposed to be "taking it easy" due to current pregnancy being complicated.
Regarding DC:
If they tantrum (sometimes with kicking and screaming) he leaves me to deal with it entirely.
He will not discipline/tell off DC1 instead he walks off or calls me.
DC tells me and other relatives stories of how when their dad is looking after them he plays on phone and ignores them and when asked to play game or read book he replies "oh no not again!". Or worse how he had accidentally hurt them whilst not paying attention (eg. Water and shampoo in eyes during bath).
DC is lovely all day until he comes home and then descends into bad behaviour.
Regarding me:
He hadn't asked me how I am feeling for probably over a month.
He frequently finds excuses for not letting me have a lay down.
He doesn't ask about upcoming appointments or scans.
Last night in bed everytime I went to sleep he woke me up with loud sighing or his phone.
If I challenge him over his behaviour his first response is "no I never" it's honestly very childish and frustrating.
I feel like I am not at all in a relationship but due to the stories DC tells about their father's behaviour absolutely dread the thought of leaving DC1 and unborn DC2 alone with him in future for contact.
Any advice?