Day 6!!!...and a tiny question!

I know I am getting annoying (lol), but my enthusiasm is hardly containable!!!I am on day 6!!!It's 8 am here and I woke up happy and energetic, so very proud of myself!
I am constantly a little hungry, just a tad, like when you skip a meal, but I am determined and it's not that bad really. Unfortunately the bad breath is on its peak, and my face is breaking out like crazy...Other than that it's all well...oh, and thank god I can finally function without coffee!!!yeah!!!!I sleep better too!
I don't want to weigh myself daily any more, it's besides the point. However I am afraid I will have to extend my fast no more than 28 days, because March 21st is my sister's birthday and I got her a four day trip to Barcelona...:)
As you can imagine I can't be on a trip and water fasting!!
If I go up to 28 days,that means my fast will end on March 15th, so I will have plenty of time to replenish my energy with my juices and fruits!!
May I ask you guys, how much weight do you think I will lose on 28 days of water fasting? I started 133 lb!:))
Thank you so much!!!