What Goes on in the IVF Lab?

Once your retrieval is completed, other than taking your prescribed medications, there is nothing that you can do to positively affect your outcome. The best thing you can do to produce a healthy pregnancy is to rest and leave the embryo culture to us. Your doctor will need to relay pertinent information to you during your cycle so, please provide a number which you can be reliably reached. In attempts to alleviate your anxiety, we have outlined a day by day description of what we hope to see as your embryos develop.

Day 0: Retrieval and Sperm Collection

Following your retrieval your physician will tell you how many oocytes (eggs) were recovered. Not all of the oocytes retrieved will be suitable for ICSI (intra-cytoplasmic sperm injection) or for conventional IVF. ONLY those oocytes that are mature will fertilize. Rule of thumb to remember, anything above 50% is good.

Day 1: 18 Hours Following Retrieval

Woo Hoo! Normal Fertilization has occurred. Fertilization is noted by the presence of 2 pronuclei. This represents the chromosomal material from both you and your husband. Unfortunately at this stage, fertilization is all that we can tell. We cannot accurately predict how the embryos will develop. Once again, a fertilization percentage of over 50% of your mature oocytes is good.Ryan Miller, MS, Clinical Embryologist has written a very detailed report to help you understand the stages of embryo development.