I'm so sorry to hear about your awful past. It must have been a hard thing to come through.
All i can advise is, give it time. You've said yourself that your OH is a wonderful man, completely different to your ex. Just think about what an amazing father he will be to his own child is he's so good with yours. Just think about the future, focus on the good things. Hopefully, as the pregnancy develops and you see scans etc, you might become more excited.
I really hope things work out for you. Ans remember, we're always here for you to vent.
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