Took norethisterone and now period is 2 weeks late!

Hello All,

I really need your advice. I took norethisterone for a week while I was on holiday, my period then started 3 days after I stopped taking (12th Feb) it like it should. Its now the 2nd April and my period is 2 weeks late. My cycle is usually around the 5 weeks mark. My periods can be a little irregular but it has never been this late. I have had protected sex, but I don't think there is any way I could be pregnant as we are very careful.

I have also taken a pregnancy test yesterday which was negative. Has anyone else had the same problem after taking norethisterone?

I have taken norethisterone once before and I didnt suffer with any side affects like this.

Please help!

Thanks in advance.