Am I the asshole?

After a bit of advice as I’m in a kind of “am I the asshole” sort of situation. I’ve always wanted 2 kids, and up until recently so did my partner. We have a 10 week old so still very new to parenting but he’s now said he doesn’t want another but there’s always a different reason each time he says it. He can’t share his love for her with another child or “I couldn’t do this again” and I’m just wondering if I’m within my right to be a bit upset about it? As we always agreed on two kids and we were on the same page and now he’s changed his mind, of course he could change his mind again when the time comes as I’m in no rush at all to have another for a good few years. I feel almost like it’s such a massive thing for me to have to give up but yet it’s also such a massive thing for him to compromise and do just because I want it if he truly truly doesnt want another. I don’t know I just wondered if anyone had any thoughts on the matter☹️