I have a 6 month old baby and I am very broody again, what should I do?

I have a baby and love her more than anything, I have always wanted children even though my baby was not planned, I am now very broody again, I have always wanted my children close together but is this too close? I have discussed this with my partner and he said if it's what I really want we can do it but he would rather concentrate on getting married first. He does want more children but I dont want him to just have another baby to keep me happy, what should I do? Should I wait?