There was a recent discussion about this and someone suggested taking your first utrogestan on day 15 after your period started, regardless of your period being late or early. I switched to this way and it is very much easier for me. I was getting confused before because my period tends to come before I finish my 12 progesterone days. This month is my first one where I've not bled during my 12 P days and it's also the first time I've used utrogestan vaginally at only 100mg a day,
I'll have a good think about that!
Anyway, that is what I do now.
I take utrogestan beginning either;
on day 15 after my period started,
or,
on day 28 since I last started it,
whichever happens first.
So, yes, take it today is my very non medical advice.