Should I be worried ?????

Zero sign of my period, was supposed happened at the beginning of the month. But nothing.. last period of a month late. But I am sexually active and zero protection.... should I take a pregnancy test??? Or am I just overthinking it? But The weird thing is my stomach has been growling in a since but I’m not hungry also.. I’ve been not able to sleep and feeling sorta sick to my stomach but not to the point of throwing up... help