Is it a sharp stab of pain from vulva upwards into the vagina? That could be Lightning Crotch. It felt (to me at least) like an cattle prod to the nethers.
I get pain when I'm constipated and my issue is bad I have to take colace everyday do u have that issue I went to my Dr cuz it scared me but we came to the conclusion it was just that
Re: Anyone having pain down there
LFAF Summer 2016 Awards:
They mention it briefly here: https://www.thebump.com/a/things-no-one-warned-you-about-pregnancy
Eta: link