I am thinking of you and your husband and I hope everything works out for you. I don't have much good advice, but I have been through the same thing and nothing is more nerve wracking than fertility issues and waiting to find out if you are pregnant. We went through this for a year and a half, and I remember just living for that test each month.
You are going to think about it, so don't try to ignore your anticipation. Just stay busy, think positive thoughts, but be cautious.
I was very lucky in that we finally found a treatment that worked, but the whole first trimester I was a nervous wreck. I cried almost everyday thinking about the worst possible scenario. I spent a lot of time trying to focus on doing the things I loved that made me happy - ballet classes, reading a good book, etc. So I would suggest getting into your hobbies. Also, try not to talk to anyone about it. You don't want to have to go around sharing the outcome if it is negative. It's hard not to talk about it, but pick one close friend who you can really depend on, not a lot of people who will not know how to react or console you. We made the mistake of telling everyone in our family when we found out how bad our fertility problems were because we were in shock. Then we had to live with the consequences of being under a microscope while trying to get pregnant. It put more pressure on us than was necessary and added to the stress. You also have to listen to dumb advice all the time - eat this, sleep like that, drink this, or my favorite "just stop thinking about it and it will happen naturally."
On the positive side, now that I'm at the end of my second trimester I feel like my baby is the most special baby in the world. Going to all the specialists, the crying with my husband, worrying over the different treatment options have just made me so in love with my baby because he's our miracle. We cannot wait to meet him and dote on him. I know it will be hard trying for another baby, but I also know we can get through it no matter what the outcome. Also, my husband and I have never been in a better place in or marriage. This is the hardest issue we have ever had to deal with in our relationship, and we've come through it and are more bonded than ever. No matter what happens with your IVF procedure, you should lean on your husband and let him take care of you.
I don't know if any of the above was helpful, but I wish you the best and hope you end up with a happy, healthy baby as a result of all your efforts. Just take it day by day and let yourself express the emotions.
Good luck!!!