saying things you don't mean when your horny?

So my fiancé and I both agreed that we want to start TTC fairly soon, not right now but we both agreed that it's something we want sooner rather than later and we both express our excitement on the issue, sometimes he will send me cute baby pictures of his friends kids and tell me he can't wait for our turn, he will make comments like: "when we have a kid we should do this" or if we do something fun he would say something like "this will give me a story to tell our baby." 
But this morning he told me that he only wants a baby because he said he was horny. It kinda broke my heart and made me feel like a thirsty idiot. ALL those times we talk about it and look forward to the future you where just saying that because of THAT? But then he added: "but it's definatly something I want for the future, I've always wanted to be a dad." 
I feel a little confused? I feel like he told me two different things. I told him I was confused and a little broken-hearted because of the first comment he made, and he called me a witch and said that because of his second comment I should disregard the first comment about only wanting it because he was horny. 
He's super mad at me right now because I've been feeling down about this, what should I tell him?
UPDATE:*****
I just got an array of text messages earlier