Yeah at 15 weeks something is definatly wrong. was that a typo and not 5 weeks?
Are you sure you meant 15 weeks pregnant? If you are saying that you thought you had a 15 week pregnancy but have not had a lot of checkups yet? If this is your first checkup in a while, is it possible that you began a pregnancy 15 weeks ago but that it faded?
I'm very confused.. Only because if she said she can't see the baby she should have, in my opinion.. Sent you to speak with a doctor immediately. You didn't get to hear a heartbeat or anything? I would definately say if you are for sure fifteen weeks Something is not correct. Thoughts and prayers to you.