Lightening and lightning crotch

Yesenia

Im 31 weeks pregnant at the moment. There’s been a couple times a day this past week where I feel like a sharp “lightning bolt” quick sensation above my pubic bone(kinda hurts for that quick second).. It catches me off guard for that quick second where I hold my underbelly just to I guess make sure it doesn’t happen again idk why I do it it’s just an instinct lol. But I want to know so badly what this is. I can’t find anything really about it on google or YT. I read something a bit similar to my situation on google but it mentions that the baby dropped already and is known as “lightening” is this it? Am I too early to have my babygirl drop this soon? Please help, anyone.

Oh and I don’t see my OB til Tuesday (: just wanted to ask before I go in.

Thank you 😊