I’m upset. I am single parent of one (6) and my ex has just been a very basic parent. Somehow reliable seeing his son once a week for 6 years never extra. I wanted a big family and he disliked being a parent plus cheated. We divorced and now his girlfriend is pregnant . Congrats to her, but I am upset, because no one told me - I saw her today and she was clearly hiding a belly. I then asked my boy (I couldn’t resist ) an he told me he promised the girlfriend he won’t tell me about the baby. I don’t get why. I hate that my son was put in the position to lie to me (we are extremely close). Me and gf met few times and i really really liked her - never bad mouth the ex even though I have a lot to say. I don’t get it. I would actually be happy my boy has a sibling that I couldn’t give him because of the break up (obviously little bit upset because I wanted more and my ex clearly hates parenting and is now having kid while I am getting to age when it’s not gonna probably ever happen). I am seeing her again in two weeks and I don’t know if I should say something (we are not close we just met and chatted few times when she was helping taking care of my boy).