Fertility monitor & digital sticks saying different things??

Hi guys. It’s my first month TTC baby #2 and I’ve started using the clearblue advanced sticks as well as the fertility monitor. I’ve had a peak reading in the advanced stick but still only high on the monitor after 10 days of testing.. which one should I believe?! I’ve read online that a lot of people don’t get a peak on the first month of using the monitor as it’s getting used to your cycle, is this correct? I’m so confused!