Honestly @Waffletots you are showing more grace, dignity and strength than I would have thought is possible for any person in your situation. I am so glad you have such a supportive family too.
I can't believe he didn't ask after your well being at this stage of your pregnancy, or your child and the new baby. What a total arse.
Let your family look after you, and you can do this. You are clearly a great mum, brought up in a strong family, and you are and will be that for your kids who will be showered with love.
He can get lost and pay up.