First time mom here!

I am in my 27 weeks and 2 days right now and I don't know if it's right to call this diarrhea but I'm experiencing soft stool / watery stool for 2 days. Today, I poop 3 times in a row. Also, I have this feeling of vaginal pressure / heaviness in my vagina and last 2 or 3 days ago I think there's a needle stabbing my vagina feeling. My main concern here mommies, is this normal? or should I call my OB? :( I need an immediate answer cause i'm being paranoid here.... 😭