Ok so this is a long one and like something out of a soap drama.
I have been with my partner 10 years.
In feb 2020 I slept with a coworker and ended up pregnant. I was in 2 minds as to keep it, I bled and had 3 emergency scans in the first trimester and once I saw the heartbeat I couldn't not keep him. Fast forward I have a healthy boy. My partner is completely unaware that he isn't the father.
A few weeks back I told coworker he was the dad. Baring in mind he is with his partner and they have a 8 year old son. Co worker doesn't want to be involved but I needed to tell him. He says he can't deal with this now he's on antidepressants in a bad place etc.
Fast forward to today I have found out his partner is pregnant again and due any time. And that a HR girl is also pregnant by him!
Now I know what I have done is completely wrong and I live by the fact I know what I've done. However do I owe it to his pregnant girlfriend to tell her the truth? Open a huge can of worms. Or do I leave it?
AIBU to tell his partner?