funny pain down there

I have been lurking a bit and I decided to come out for a question. I am 23
weeks along with second. I am getting a funny pain in the crotch area, like
cervical pain or in vagina. Maybe a sharp pain that comes and goes. It
seems to occur when I am walking, like each step will cause a sharp pain,
when I sit it is fine or lay down. Some times it is on slightly one side. I
dont remember if Ihad this with first.
Is this normal?