binky's or diapers...

So in order to get Molly potty trained we have come up with the idea that she can either have her binky's or her diapers...we have been talking about it with her for awhile and I decided today that she understands the consequences....so I put some panties on her tonight and kept reminding her that if she didn't use the potty she would have to throw her binky that was in her mouth away...so we were playing toys and she crossed her legs and looked at me..I said lets hurry...but she wouldn't go..so we continued playing and sure enough she had an accident...she looked at me and I told her she had to go throw her binky away..the look on her face and watching her walk to the bathroom and throw it in the trash broke my heart...the binky's are her world..I started to cry..maybe this isn't a good idea...we changed out panties and I brought the toilet into her room and she sat on it right away and finished going potty..I was so excited for her..she ran to the bathroom and got her binky out of the trash...ok..maybe it might work..but it was still such a sad look on her face...I hate feeling so guilty sometimes...