I am 21 years old and just found out I am pregnant with my second child. I havent been to the doctor yet but this app estimates me to be about 4 weeks . My first born will be one next month and I'm kind of worried about having two small children at such a young age. Especially since I am a single mother. I am not with my sons father but this baby could be his. Buuut it could also be by a guy I have been dating for almost 2 months