Sharp cramping pain? 😰

This morning I was driving to work and a few times got a sharp pain in my lower abdomen. It honestly felt like gas, and I have been constipated. The sharpness as stopped, now it just sort of feels like a dull ache.

Does anyone else have sharp pains in their lower area and are they usually attributed to gas? I'll be 12 weeks on Thursday and have been a nervous wreck the whole first trimester and am really looking forward to the second. I don't have any bleeding or anything