Hi there. Well, what actually happens is that you skipped ovulating when you normally do so then you don't get a period. Your cycle is longer rather than skipping a period, if that makes sense. This can happen for a variety of reasons. Stress, illness, weight gain or loss, issues with thyroid, changes in routine, etc. I'd wait to see if you get it in another 15 days and if not, see your doctor to determine what is going on. good luck hon
My period was just nine days late then came and only lasted for three days that's the first time I ever missed or had a late one and five neg test