My period was supposed to come 15 days ago, still no sign of it, AND NO POSITIVE TESTS.

My period has never been even two days late, let alone over two weeks! I know I'm probably just hoping too much here, but is it possible to be pregnant and not have enough HCG hormone to show up on a home pregnancy test? I'm having lots of signs of pregnancy as well, but as we all know, that gets to our heads a lot.

We've been TTC for six months and this is just kind of messing with our heads now. I'm thinking of going into my doctor and asking for an ultrasound. Am I crazy?! Or would that be a smart thing to do?

Any similar stories or advice from you ladies?