Day 37 of my cycle glow says period should start today. Don't really feel like it's coming but my cycles are usually 32-33 days so not sure why it predicted this one so late. So according to my usual cycle and other apps I use I should of started the 28th. I've taken two test one yesterday and one today but both negative. 12DPO and 13DPO. Really hoping I don't start and I am pregnant but just not sure why I'd be getting negative tests. I am using the cheap 88 cent ones from wal mart. Could that be why ? 😩