Stomach cramps?

I’m currently in my tww, period due in 5 days, and I am experiencing symptoms, but you know the symptoms that could be pregger or AF 🤦🏽‍♀️ but this morning and yesterday I have cramps in my stomach. Not like period cramps, like my below my stomach. More in my stomach like I have a bunch of gas and need to poop. And boy have I been gassy 😭😭 but has anyone else experienced this? Should I be worried? It’s kind of like a wave of pain and then a dull pain after that lasts for a while....