I have a 20 month old. Just took an EPT and it appears to be positive, that I’m pregnant (sssshhhhh). So I’m wondering, how is the second pregnancy and delivery different from the first, and how is it having two little ones instead of one? How can I prepare myself?

I gave birth about 3 months ago ( 12 weeks) and I think I might be pregnant again. Is it possible? I am not breast feeding anymore.The home pregnancy test came out positive and my question is could it be just the residual hormones from last pregnancy?