I have been on the IVF trail for 2 years now and have tried to get pregnant for nearly 4 years (2 natural). I Have done day 3's on long stim cycle, and last two cycles antagonist. Have had good egg collection and hubby and I get 63% fertilisation rates. Last time we tried a Blast and we did not get pregnant. Have heard from other people on IVF to only continue blasts due to higher chances. Have decided to continue with blasts and Iam doing the next drug cycle - the boost cycle and see what happens, doctor suggested try a different regime and hope for different results. Last August I had a laperoscopy to make sure I had no problems, all fine, Doctor said there is no reason that is stopping me form getting pregnant. I have also had all the blood tests known to woman - also no problems. The reason we are on IVF is hubby has low sperm, so we are doing IVF (ICSI) to assist that situation and as I have said we are having good fertilisation. Like most of you I am also taking Chinese herbs and doing accupuncture. I am getting really frustrated with our situation as I am sure you all understand, and sadly time is clicking away and I turned 41 last september. I am thinking that if the next cycle doesn't take I might try the Colorado treatment as I have heard alot of successful stories from this treatment, has anyone got any information on this or has tried it would apprecite any extra information or anything thing else I haven't tried that might help - thnaks so much.