Am I over reacting? ****edit****

So my ex boyfriend and I are having a baby together (not the ideal situation, I know, but it is what it is). So I found out the gender yesterday’s and it’s a girl!!! I’m so excited and happy about that. A few weeks ago me and him agreed on a boy name (Jensen) because he loved it, and a girl name (Myla) because I loved it. Now that we know it’s a girl he says he doesn’t like it and insists on a different name. I think the only reason he agreed on Myla with me was because he thought it would be a boy and that if it did happen to be a girl he was planning on doing this. I have loved the name Myla since day one and it made me sooo happy that he finally agreed to that name. Now that he’s doing this, it makes me super angry and upset.

In the end, it’s legally my choice isn’t it?

I know this sounds so petty and immature and we shouldn’t be fighting about baby names but he has been an ass hole about most everything throughout my pregnancy so far.

Am I over reacting? Do I have the right to be upset? :(

***EDIT***

i know I asked for your opinions but how am I the only one being un fair?? we agreed on a boy name and a girl name. He made me think he liked the name Myla and now that it’s a girl he all the sudden doesn’t like it. How am I wrong for wanting to stick with what we agreed on?? In my opinion he is wrong for agreeing to a name he knew he didn’t like just so he could get his way with a boy name. He’s always been controlling and here he is, trying to control yet another situation. I’m just really frustrated with him and trying my best to work with him but he makes it so hard.