How can anyone be pregnant and not know it, I mean I read where the 18 year old just found out at 5 1/2 months. I knew right away I was pregnant..!!!I just find this so amazing...is this possible...? but anyways congrat on her new arrival later on...so she is 18, she is considered and adult so no one really has anything to say about her being preg, just be thankful she wants it and her family is supporting her. Good Luck...