3 kicks in 20 mins?

A

I’m having cramps, the triage nurse at my doctors office said it’s a sign of early labor, so they want me to do a kick count. I’ve never had to do one before but just downloaded an app and I’ve only felt 3 movements laying on my side drinking ice cold water in now 25 mins. Is this normal?! Seems low but usually she’s not too active in the morning anyways..