Now I have just been pumping my breast for about 2 hours in the morning and then do it again at night time but here is the question for you...OK I am now I am a man here and I have been doing it for about 1 1/2 years now and I'm am trying to figure this out my tip of my nippels and very very sore when I take the cups off and they stay like that for about 2 hours later so can anyone out there who would like to help out please do...thanks