Nakakabahala talaga ang ganitong pain, pero minsan kahit normal ito lalo na kung one-time lang at nawala agad like yours! A few of us mums experienced sharp twinges during pregnancy or after, and it could be anything from ligament stretching to gas, pero since you're worried, definitely mention it to your OB next visit para peace of mind mo lang, alam mo na. Observe pa if may pattern or if ulit ulit, at kung may bleeding or heavy cramping, that's when you rush to the doctor right away.