Should I Repeat My Scan Now Or Wait Two More Weeks After Being Diagnosed With A Blighted Ovum And Starting Duphaston?

Hi, my LMP was 02/17/2021. I took a pregnancy test at home last march 23rd and it is negative. I took another test last april 3rd and it turns positive for all 3 different test kit. then I went to an OB GYNE last april 16th and a little transvaginal monitoring was done and she told me it is a blighted ovum. She told me to take duphaston 3 times a day. Can I repeat my scan now or should I wait 2 more weeks?