How do I reset my log where everything is on time?

Leona • Born and raised in Milpitas. Settled down in San Jose,CA. We`re TTC at the moment
How do I reset my log on my info to where everything is on time? My period tracker says I'm ovulating 11th..and Glow is saying I'm ovulating tomorrow? I'm hesitant to follow Glow, only because I've been using period tracker since before I started Glow. Any ideas?