When to take Perlutan?

Last month I menstruated on the 12th, I took the first dose of Perlutan on the 19th as my doctor directed me, now this month came a sludge on the 9th, 10th and 11th, the 12th came a live blood, I wonder if I count the first day 9 or 12?
Expert answer:

Take the injection regularly every 30 days regardless of your period. It is much easier and will not go wrong.