Including blood tests, I've been about six times already!
I had a miscarriage in the spring, and I was spotting a few weeks ago. I'm almost 40, and the loss was my only previous pregnancy.
There was also then some confusion about my LMP date, because being freaked out by the spotting I blanked on the date and just said '28 days from last Saturday.' Then they wrote down a date that was actually 35 days from the previous Saturday, and I had an early sonogram way too early to see anything. So for the next two weeks I had my blood taken at least twice a week until the hormone levels. They rose like they were supposed to, and are now at the level where they wanted them to be, so I have a songogram scheduled for tomorrow. I then have to see the doctor on Thursday to have the sonogram explained to me - my doctor and another practice have a recent (and apparently not particularly wanted, at least on my doctor's side) parternship. Blood tests and scans and things are all being done at the other place. To have the scan done with my doctor there I'd have to wait another week, and I decided I'd feel better having it over with quicker, since I've been so worried, even if I have to go twice.
After that, provided everything is *cross fingers* ok, I should finally get a midwife (I picked this practice because it offered both doctors and midwives) and start just going monthly or whatever until later in the pregnancy.