Weird Cycle

Just looking for a little insight. My period cycle is 27 to 28 days long. Ovulation always happens on day 14 of my cycle. I am getting negative opks for the last 3 days. Day 14 would have been yesterday for me. Glow is now saying I won't ovulate until day 19 (because of my negative OPKs).... not sure what is going on. Glow is saying my cycle will be 32 days long this time. I know your not doctors, but I figured I would see what you all thought. Thanks for taking the time.