Tightening feeling in my stomach

Cierra🐯🎀 • Momma to Harlyn Grace 🍼🎀
I just had this tightening feeling in my whole abdomen, it felt like a charlie horse in my stomach lol I'm not sure what it is but it lasted about 5 minutes, I'm 33 weeks pregnant and never felt that feeling before. I know its nothing bad I'm just wondering what it could have been