The doctor will not see you now

Seriously, what does it take to see my ob/gyn? When I'm actually delivering? Two bleeding episodes, two phone calls to the doctor's office, and two "We'll keep an eye on it". Other moms-to-be on the babycenter.com board commented that once they called their doctors with the same problem, the doctor either told them to come in right away if it's during the day or go to the emergency room if it's after hour. My first appointment isn't for another 2 weeks. My fear is, there wont be a baby there at the ultrasound.