Baby fever!!

So this will probably be null and void to most of you since you're young, but I am 25, married and have an 8 month old. Lately I have had baby fever SO bad. I want Hudson to have a sibling close in age, I miss being pregnant and I LOVE being a mom. My husband says he isn't ready though. When I found out I was pregnant the first time, it was a surprise but has turned into the absolute best surprise ever. Anyway, how can I cope with this? I want another baby more than anything and when he says no and tells me to get on birth control it really upsets me. :( this is Hudson... How could I NOT want another?