Elizab
Just make sure you are super healthy and I woud highly encourage you to keep a journal or some log like I did. I felt like I must be 1st too but found out that I am the 6th pregnancy at my CF clinic and 3rd IVF'er as well <img src="i/expressions/face-icon-small-smile.gif" border="0">
Whatever you do make sure they dont hyperstim you! Conservative is the key, they really tried to prevent this with me but you will see I got a touch of it which was not fun but didnt affect my lungs.
Also, it is not in my blog but I believe perhaps the reason I bled during my cycle was due to the high hormone levels, Iknow I was 100% not sick, even doc agreed tthat time and more I read more I think bleeding may be due to hormones.
Take care!