I’m so sorry you are going through this op, especially while pregnant.
What a prince of a man your soon-to-be-ex is!
He should feel thoroughly ashamed of himself.
I think BookArt55 has offered brilliant advice.
All I would add is, try not to think too far ahead. You don’t know what the next five or ten years have in store and it’s scary because it’s the unknown. I totally understand that. But just try for now to deal with the here and now, preserve your energy and think about today and a few days ahead. Focus on the practicalities affecting the dc and eating well, sleeping as best as you can manage and getting outside in the fresh air for a walk every day. Really pamper yourself as you are in shock.
I would make getting some support from a therapist a priority. It turns out that the sense of safety your dh gave you was not reliable but you can rely on yourself and come out of this stronger.
Do you have family and friends around you who can help with the toddler? Have you told everyone yet? Don’t protect your dh’s feelings! Just raise the alarm and call in as much help as you can and have your family and friends in your home as much as possible too.
Have you thought about getting a support person for when you move house, when the time comes to give birth and for the first six months? Start working on that now to give you a sense of organisation and safety. In other words, get as much under your control as you can!
Grey rock your dh. Now this has happened, wrap a protective carapace around yourself. Don’t show any vulnerability in front of him if you can help it. The best way to get through this is to show him that you are thriving. Outwardly anyway! And take back some of the control. You don’t need to think about him anymore in how you live your life except over the arrangements with the dc. Start suiting yourself within the context of this nightmare that you are living through. Do what you need to do to get through this in the best way you can.
It’s a very hard thing you are going through op. It will be a very testing period but you will be ok. 💐