Pregnancy depression

I have a 6 month old and am in a group with people who also have 6 month olds and a lot of them are pregnant again. Seeing them be pregnant again makes me upset. I wish for nothing but to be pregnant again. I miss it so much plus I want another baby. I just wish my husband was on board to have another but he wants to wait till our baby is a little older first. I get that but I just feel like there is no better time then now. My mil says when the time is right it will happen but for me the time feels right now. I guess it’s because I have such a wonderful baby. I got super lucky. He doesn’t fuss much and he is progressing so fast. I just really want another. I want them close in age. I just long to be pregnant again and have another baby.