No period after norethisterone

[Queenr]

Evening all,

I’m just waiting for the period to arrive as it has been three days since the last tablet. I am annoyed as I won’t be able to make my 3 day scan. Just trying to google ways to get the period to start.

Did anybody else have similar issues with this drug? I need to call the clinic tomorrow and cancel the appointment.

Please let me know xx