No blasts

Hey guys! Trying to get some advice on things I can do to help my chances... I’ve gone through two rounds of <a href="https://glowing.com/glow-fertility-program">IVF</a> + ICSI with zero blastocysts... My SO has a blockage that doesn’t let sperm out so we have to do <a href="https://glowing.com/glow-fertility-program">IVF</a> to get pregnant. I am so sad and frustrated because they really can’t tell me why it’s happened twice now. Last time, they transferred on day 3 just to give us a chance but it didn’t take.

First round- 10 eggs, 9 fertilized, 0 blasts

Second round- 9 eggs, 5 fertilized, 0 blasts

My question is, is there anything that your RE has told you to do to increase your chances? Mine has suggested using half donor sperm for this next round so we can see if it’s sperm or egg that’s causing the issue. He said that ALL of my lab work has looked great through each cycle. They also said my husband’s sperm looks great!