Sending sticky vibes. I worried with both as well. As my OB said, there's nothing you can do if it does happen, so you might as well not make yourself crazy.
Easy for her to say!
Now, she did do a vag.
u/s for me at about 5/6 weeks and we got to see the little blip beating away. That was amazing for me and helped me relax some.
Would your OB do that? Mine had the machine in her office. Took less than 15 mins for the whole thing.