Congrats! I'm going through a similar situation. I'm 17 and pregnant with my second. I'm technically single, because I'm not actually married, but they both have the same daddy and me and him are still together. I had my son a month before I turned 17 and this baby will be born three months after I turn 18. There will be a 16 month difference between my little ones. If you ever want to talk, I'd be completely interested, considering there's not many people in a similar situation as me. Once again, Congrats!