OP you very clearly said in your PP ''I don’t know if I could cope with termination.''
So that's your initial gut reaction. That is your honest reaction to the pregnancy.
Remember that.
I think that if you weren't scared of his 'reaction', you'd also feel joy and happiness about being pregnant again ?
Don't allow him to convince you that having an abortion is the only 'solution', just because of HIS gut reaction.
He could have taken the reins and had a vasectomy if he was 100% certain he didn't want another child. He didn't. Instead he carried on having sex with little care, simply because he's 100% sure that HE would control the outcome if you DID get pregnant again, and he's not been backward about making his thoughts secret has he?
But this is about BOTH of you, and he DOESN'T get to control the outcome, YOU DO. All he can control is whether or not he stays married to you, which I'm sure will be his first response ! i.e 'You need to sort an abortion', and/or 'If you keep it I'll leave you and you'll be a single parent' etc etc.
Prepare yourself to hear this from him, and have your replies ready.
Personally I'd be holding the door for him and saying 'Off you fuck then' as I would never be able to live with having an abortion either, but that's just me. A husband can be 'replaced', but your children can't...
You have to be able to live with yourself and with your decision, you DON'T have to live with HIS...
Take your time to really think about this before you tell him anything at all about being pregnant, be 100% sure of YOUR thoughts and wants/needs regarding this potential 2nd child before you speak to him, because he's spent a lifetime making you dance to his tune, but this is about a serious life choice, not where to go on holiday or what house to buy (these are 'reversible' choices) but you having the 2nd child you've always wanted and whether or not you could ever live with having an abortion are not....
Take your time and don't rush anything.