Something weird is happening to me

Funmilayo

Hey I have a question I’m on period day 4 and I have noticed something different about this month period since the first day of my period I have had this tiny vibration close to my clitoris it not painful at all it’s almost like a phone vibrate when a call comes in I feel it like every 5 to 10 seconds apart is this normal I have never experience this before I’m also TTC