I can't speak to the estrogen, but I can tell you that almost everyone experiences a stall at about the 3 week mark. Search "three week stall" on this forum or in google and you'll find tons about it. My advice is to stay off of the scale for the first month. Your body is desperately trying to begin the healing process and that takes priority for it over losing weight. Your job is to meet your Protein and Water goals everyday and stick to your plan regarding your food stages. If you do everything you are supposed to do, the weight will start to come off eventually.
Good luck!
