What do people mean by "twinges"

I've been feel some very light cramping it's not bad it's pretty dealable & some light sharp pains in my very low stomach & sorts up where my cervix is once again it's dealable just annoying, it's the weirdest feeling I've never felt this before. I already have a feeling I could be pregnant, but I don't want to jump to conclusions until I test. Are the twinges like this little stab I've been getting every 2 seconds or so a couple times  a day or is it like a vibrating kinda feeling I'm so confused of what people mean by twinging? Thank you in advance! ?