I don't know what to do

Hey all you expecting mommies.. I'm about 4 weeks along based on my last period & I keep getting these gas cramps.. So far today I've only had one & it lasts about 30 seconds & I feel like I need to 'relieve' myself but the gas stays trapped & I think that's what causes the cramps. My question is when I'm logging my physical symptoms do I mark it as cramps? Or because I know it's gas do I just ignore it?