Ultrasound timing advice

Suzie

Hi guys! I am 8w1d at the moment. I am doing the Harmony NIPT test and therefore dont need the nuchal scan at 12weeks but the doctor wrote me a slip for a general ultrasound so I can see baby. Here's our timeline

Thursday - friend arrives to stay with us

Sunday- birthday

Sunday night - friend goes home

Now I kind of want the scan before my birthday but dont want to do it when the friend is over. Should I scan on Wednesday 11w1d or would it be worth waiting until I am 12w. Have had a previous MC so bit nervous :(