In the very start of the whole process (2.5 years ago) the only people who knew about us going through IVF were my SIL and my best friend. I decided not to tell my parents or anyone else so then if it never happened I didn't have to explain to anyone or keep answering questions. It has only been the last month that I confessed to my parents and told my sister. I'm such a private person but I can only say it was the best thing I did. I haven't told anyone else but I feel really happy that the people closest to me know what's going on. My DH has told a few of his close friends, and in turn their wives now know, which is good because he needs an outlet as well and they are very sensitive to the position we are in. Once I told my parents and sister I felt like a huge weight had been lifted off my shoulders. It's not like every time we talk on the phone they ask me where I'm up to but it is good to have the extra support around OPU or transfer time (and it takes the pressure off my DH a bit!). I think it really comes down to the relationship you have with a person as to whether you tell them or not. If they are only going to cause you grief, or be in your face about it 24/7 then you are probably better off not telling them. It's all part of the ride I guess...