Runnermum, I want to give you a little bit of hope with my story...

I've had a total of four blastocyst transfers, which have given me three pregnancies and three miscarriages. I've had major problems thawing embryos in the past, as well as major problems with hyperstimulating so I'd not had a fresh transfer at all.

We headed into our third stim cycle with a new plan to avoid the hyperstimulation at all costs. Believing that a fresh blastocyst transfer would be the answer to our problems...

Having PCOS changes the way egg numbers and fertilisation rates work for us. I got 20 eggs, but only 12 of those were mature. We'd never had fertilisation problems before as we use ICSI, but this time, only four of our 12 eggs fertilised. We were absolutely devestated at this point. On day two, we were told that only three of our embryos had divided... We'd gone from cycles giving us 4 and 7 blastocysts (from MASSIVE egg numbers), to only having three embryos and feeling extremely deflated. We too made the decision to transfer on day three and not risk growing to blastocyst and having nothing to transfer...

Fast forward three weeks and I'm now just over five weeks pregnant and hoping like mad that this one will stick long term. But it just goes to show that blastocyst culture is NOT the be all and end all of IVF. I wish you every success, but please don't second guess yourself on the blast decision. You did the only thing you could at the time (as did I), and people still get pregnant with day three transfers, and people still get BFNs with blastocyst transfers.

BW