Hi Jane
Good luck for tommorrow, there will probably be lots of info to take in!! So fate has played you a helping hand has to be a good sign!
I t can be very nerve racking when you first start this road, I remember when we went for our first appointment we were sat all quiet in the waiting room and a lady came through the door. She breezed in calling all the staff by name asking them how they were. She received hugs off a couple of them and it all looked so friendly and nice. I remember thinking I wonder if we will ever be on first name terms and hugging terms like that? Here we are now on first name and hugging terms!
I have premature ovarian faiilure and only one ovary working at about 25%. My chances of concieving with my own eggs are zilch so my sister this year donated her eggs for me. We did a donated egg cycle back in October and I fell pregnant for the first time with IVF (I have had 2 previous miscarriages years ago with natural pregnancies), sadly I lost the baby just before xmas so still coming to terms with it at the moment but we have another appointment to try again soon.
Fantastic that you do not have any problems to overcome with your fertility although I guess it can be just as frustrating not knowing why you have not fallen pregnant. I wouldn't worry about the weight if they have accepted you they must feel confident, well done for giving up smoking, I did too a few years ago and it was hard!
The best advice I can give you which is vitually impossible to do

is to try and relax about the whole thing. I felt differently this time and truly felt what will be will be, and I know I lost my baby but I did fall pregnant which is further than before and I feel part of that was my attitude this time.
Let us know when you are going to start your cycle, there is an awaiting treatment thread which you could look at I am going to pop over there and see if I can join on, also when you do start treatment there will be a thread of people all starting around the same time it really helps to talk to others who are doing things at the same time as you.
Take Care
Lee xx