The morning after pill

Has anyone else taken the morning after pill and had their period late or missed it all together?

I am on the pill and accidentally missed one. Therefore, I took the morning after pill. My period was due a few days later when I'm on the 7 day break of the pill.

Well I'm 2-3 days into the break, I have all the symptoms of my period (tender breasts, anxiety, hormones, faintness, a slight cramp now and then) but no period.

I don't know if I'm just worrying over nothing because I read online that the morning after pill messes up your menstrual cycle.

I just want to know if anyone has experienced anything similar?