Ovulation questions

Hi ladies I'm having trouble understanding this.. I took two different opks the digital and answer brand. My answer test is not positive but my digital is reading positive. I am only on day 10 of my cycle and I usually don't ovulate till day 14 and that's pretty consistent  for the last 3 months so what do I believe? I've only started using the digital for two days so I'm not sure why it says positive..the top stick test is from this morning and the one below is from yesterday and days before..