Ex husband' pregnant

Jennifer
Sooooo my ex husband and I were never on good terms... And so far everyone (including my daughter ) is used to it and pretty much ok with it. I've moved on... And so has he. Just found out that he got one of his girlfriends pregnant and my daughter is going to be a big sister. That's coo too. Hell I was even suggesting that they would get married... The response to that was "oh they are" once again... I'm fine with that too. The issue? Well... One.the female has at least 4-6 other kids and he has no problem being a father to them... But has a problem being a father to the three he already has (I have one of those three lol) which irks me. The other is such a personal problem I don't know how I'm feeling is normal lol. I dont mind him having more kids or even moving on... I'm irritated cause I wasn't the one to give my daughter a baby sibling first. Which is just rediculous. I'm not used to being petty. Maybe it's cause I want more children and my husband and i can't right now or the fact that I feel we deserve to be allowed to not give a damn about responsiblities and priorities just like them... But can't cause we have responsiblities and priorities...bottom line...I just feel like it's unfair. Am I wrong feeling this way?