Where oh where is my period?

[Puzzledconfusedandbewildered]

We are ttc and I have very short (22-24 days) cycles so we tend to dtd from cd5 as it was for various reasons we only dtd that day this month.

We've been on holiday this past couple of weeks so I took norethisterone to prevent/delay my period. I came off it 4 days ago and still no period but I've got a semipermanent nausea going on.

I took a test yesterday which was negative.

So where is my period? We want to get started again!

Is this normal for norethisterone?

I have a history of early mc's so could the progesterone have helped and i need to give it a few more days and test again?