Such longing

I am not sure what has come over me, but I have such a strong longing to have another baby. My husband wants us to wait until we have finished school. I’m 34 and never finished college due major issues with alcohol, depression and anxiety. I am so scared that if we wait, I won’t be able to have another. I know women are having babies into their 40’s. I don’t want to wait that long. I don’t want to run the risk of not being able to get pregnant or have something wrong with the baby. It’s starting to really eat at me. It’s doing more than that. It’s starting to make me cry a lot. It’s so hard to be around pregnant women now. 

I’m just not sure what to do.