sharp short cramp

Meghan • Mommy of an Angel Baby👼🏻 Rozlyn Grey born July 7th 2018! Wrenlee Kaye due Feb 1st, 2020!
I had a sharp cramp on my right side, should I be worried, it lasted maybe 20 secs..if that.. I have been a lol constipated so thought it may have been from that.any ideas? Just calm me down..first time being pregnant so not sure what to expect!