Is this true about baby coming soon

Chatonn

I had my appointment today I'm 37 wks & 1 day doctor checked baby heart beat, and it was 128 or something like that. He said baby could come sometime next week, because the heart rate drops when it gets close to delivery time how true is what he said. my 1st was 4 days late my second was 2 weeks late my due date is March 11th for baby #3