Another baby?

I've recently just had my second son in beginning of may. And now that he's got 3 month left to be a baby, me and my husband want another baby. I honestly, don't mind it's a tough job but having a bigger family is what I really want too. My husband is done with school this year, so he will be able to actually staying with me and the boys, so I don't have to worry about always having a baby sister while I'm at school. I'm done, next fall and hoping that we will get our chances of another lucky baby. But however, I don't want to expect instead we're just waiting on the unexpected. We're not planning anytime soon but if it happens, then I guess we're just in luck.