period symptoms but no period

I am about 2 weeks late from when my period normally starts, since I started birth control I've been on a really regular but weird schedule of one at 4 weeks then 2 weeks and then 6 weeks then 4 again so I thought okay maybe I'm finally going to be once every 4 weeks. I'm having all the symptoms of having my period, cramping, bloated, emotional, tired but there isn't any bleeding. Is this normal?