Is anyone else having issues timing contraction? I have a fairly high pain tolerance so I don't exactly know when to start counting. Half the time I dont realize it's happening until I feel my stomach and it's hard as a rock. I'm starting to get worried that I won't know when I should go in. The only feedback I'm seeing is when you can walk or talk and when it happens "you'll know". Which is not very helpful. Anyone else with a high pain tolerance having this issue?