Period like cramps/aches?

Samantha
Since yesterday I have had period like aches and cramping on and off throughout the day. It also reminds me of a gas like feeling or that I need to go take a poop...there isnt really a "contraction" or anything for me to time, unlike braxton hicks when i can actually feel the tightening and release of my belly. Is this the beginning or am I just dropping?