Mind overload

OK I've just found I'm pregnant, and I also have a 4 month baby boy, I havnt told anyone apart from my mam and partner,my mam is happy my partner isn't so he said we can't keep because we already have a baby (his words). My mother in law won't be so happy either though she don't rule our relationship so I don't listen to her, but what I'm getting at is that is it to early for me to have another or is it OK X I'm feeling quite broken because I don't know what to do....or say