Pregnancy cramping

Tasha • Ave 👧🏽4/23/12. Ev🧒🏼02/04/2015 Ez 🧒🏼10/30/16 AV👶🏻 02/21/2019 Surrogate mama🤰🏼 Ultrasound photography technician
When should I worry about cramping during early pregnancy? I never crazy pedal with my first. It low along my stomach and is just a dull constant ache.