Cramps at 20 weeks

Minni
Not sure if I am paronoid , i just turned 21 weeks and have been having cramps once or twice everyday for past 3 days, sometime it happens after a cold drink. 
Have not checked with Doctor as I am traveling, found some articles saying it was normal and a lot people have too. 
Do you ladies feel cramps after 20 weeks, like the cramp your period is about to come.