I'm sorry you're dealing with this. I apparently discovered LO very, very early, so when I had the dating u/s, the OB was instantly concerned that the baby had stopped growing based on my LMP. (Case and point of why that equation doesn't work for everyone!)
I had to wait for the blood draw, then they lost that blood draw so I had to re-do that one and wait longer to do the comparative, plus the wait time for the OB to analyze the levels to hear that they were normal. Waiting is always the hardest part, in any situation.
Are they going to do an u/s to rule out an ectopic?