A bit nervous! Every night when I lay down for bed I feel like a strange tingle in my lady parts,…

A bit nervous! Every night when I lay down for bed I feel like a strange tingle in my lady parts, feels like I need to pee so I get up and try but then when I lay down again I feel the same feeling.. I don't want to say pressure cause its not... Does anyone else feel anything like this?! I'm 30 weeks, but have been feeling it for about a week and a half.