Yes, so hmmm There was some nipple stimulation going on today and half way through it and ever since then I've had these menstrual like cramps. I figure it has to do with the oxitocin etc but how long is it supposed to last??? It's been 3 hours now or so and it's not getting any better. Do you think everything is ok? We've only had sex once since BFP (too scared), so I have nothing to compare this to. Help!