Okay weird question anyone ever deal with something like this

about six months after our son was born I told my husband that I was wanting to have another child so that our wasn't an only child. Now that our son is one I was thinking that maybe we could try for our second child. now my my husband saying he is content with just our son and really doesn't want another.

Am I being selfish by being upset about this? yes our son has been lots of work but it took 9years before we had gotten pregnant with him and I always wanted at least two children, by my own womb or even adoption he's known this for the longest time and I feel he's being inconsiderate of my feelings after all these years.

anyone have any advice? TIA