I don't know what to do anymore!!! Opinions please!

Me and my so are currently ttc, he told me he wants a baby just as much as I do. Well it seems like during my (fertile days) we are always arguing. Tbh when I tell him it's that time again it's like he starts picking fights and we argue and do nothing or we don't catch it in time. I don't know what to think about this. Also he has a son with another woman and no matter how hard I've tried he does not like me..maybe it's because of his mom idk. Anyway when he was here with us the other day my husband started talking to me about us trying and said that he hopes that we have a girl beings he already has a boy. His son looked at us and said "why would you want a girl dad? She will just be a (b-word) and yell at you!) I just sat there suprised and my husband never even responded to him.