Hi J.. First, congratulations on your pregnancy!!
I just had to write and respond to you because I can totally relate to your binky situation. First, let me tell you that my oldest (now alomst 4) was a total binky addict! I am happy to say that we had a gradual but tearless resolution when it was time to say bye bye binky. We had to do it slowly though because, like your daughter, mine was SOOO attached to it. I'm truly glad we did it the way we did because by waiting for her to be ready, she wasn't traumitized by having us do it too soon. At 15 months, like you, we only allowed her to have it at nap time or when she was overtired or really seemed to have to have it- like a "binky 911 situation, if you know what I mean- and only then. Then at age 2 (yes, age 2) it was ONLY allowed for sleeping- her binky couldn't leave it's "home" under her pillow. By age two I was starting to freak a bit- would she ever give it up? So I decided to cut off the very end of the nipple- just snipped part of the "nub" right off (I did this to all of the binkies- we just rotated them so we could sterilize them). I cut just the tip and told her binky was "broken". Wouldn't you know she STILL had to have it, cut nub and all! YES, she was that addicted!! So, here she was three months away from her 3rd birthday and I was due with my second baby. We decided she was finally ready. I could just tell the time was right. We had a talk that the "Binky Fairy" would be visiting our neighborhood soon and she would be taking binkies away from big kids who didn't need them and then the Fairy would deliver them to tiny babies (like the one in mommy's belly). My sweet girl seemed okay with the thought of the fairy idea so after a week of "Fairy Binky" Hype and stories, it happened. I snuck into her room when she was fast asleep at night and decorated with balloons and streamers everywhere. In the morning, her binky was gone and my daughter was so excited to see the decorations. I made a whole big deal about what a big girl she was. Also, she found a letter from the "binky Fairy" which I read to her. It told her how pround the fairy was of her for being such a big girl and that her binkies would be given to babies who really need them.
Hope this helps, sorry to ramble, and remember, - only you know what is best for your little one! Follow your mommy instinct :) Good Luck and I wish you the best!
-A. M.