Everytime I try to "start timer" with my sons feedings or sleep it stops after 2 minutes. At first I thought it was because I closed the app so next time I didn't close it and it still ended. Then I thought maybe I shouldn't lock my phone so I kept the screen on and came back 5 minutes later phone unlocked and it stopped again. Is anyone else having this problem? How do I get my timer to keep going past a few minutes?