should I take a test?

I was wondering if anyone has experienced morning sickness without vometing ?
I've been haven't spazems in my tourso. 
Along with that my last period was stranger then all my periods in 10 years combined. Should I consider thet for anything ? 
It was super light. Light cramping if any. Lasted maybe 3 days and barley had to changed it. I usually need to change my Tampon every 30 minutes.