I had a T promise they wouldn't kick me out of therapy, then tell me she was going away for 4 to 6 months maternity leave.
I'd noticed the small belly too, but thought she just had lunch. I also thought she wouldn't get pregnant as this was her first job after graduating from her Masters and she was on a 3 year bond to the hospital.
But yeah, her husband and her were newly weds and they decided on having kids early.
It wasn't her pregnancy which hurt, but what hurt was me telling her "Don't promise me - you might decide you want to have children etc." and she said "No, I intend to keep working with you. I'm not intending on kicking you out of therapy."
I'm sorry you're hurting! I can imagine and relate a little bit.