My 2 cents as a health care provider-I trust women who know what's going on in their bodies over technology in regards to dating most days of the week. The US, even done early can still be a week to 10 days off. The system just really likes having a number in the sand. I'd guess your MW is doing what mine is-I'm pretty sure I'm about a week further along than the US sound as well, and my MW believes me. (Meanwhile, I had an US tech tell me at 5 weeks that the pregnancy likely wasn't viable because based on my LMP, which I assured them was not accurate for dating due to wonky cycles, I should have been measuring about 7+ weeks. When I told my MW she told me the next time to just say "I don't know" about my LMP, since I went to a different imaging practice for the follow up.)
So she and I agreed to have the later date in everything official, since first babies often come past their edd, but will watch for signs of being ahead towards the end and adjust accordingly. As long as you do any time specific testing in the middle of the range of weeks a week ahead of what they say shouldn't make a difference.
PLUS I'm so excited for you to have all that activity with your little one going on!