Pregnant or weird cycle?

I need some input. My last period was on may 19. I had no one symptoms leading up to it which is definitely unusual. The period lasted 5 days. Right after the period and especially these days I am experiencing a plethora of symptoms. I am nauseous all day every day, my emotions are out of control ( I probably cry at least once a day), I'm fatigued ( if I wasn't working, I'd probably sleep all day), and I'm having lower back pains. I am also abdomen from under my chest down to my belly button is hard. Is there any possible way I could be pregnant? Or is this just a weird cycle? I am going to take a test in the morning. Has anyone else gotten a period and a bfp two weeks after?