Emotions

So i was supposed to get af on the 10 of july. Nothing. I have tested and nothing. Tummy is hard hips hurt. Morning sickness boobs were sore now they are not. They are bigger though. I made an appointment with my dr but thats not till wed. I hate waiting only because I am on medications not safe for pregnancy. Im so lost. Im 34 and never not been able to test positive. You know what I mean? Its crazy right? Is it poss to not test positive for a certain amount of time?