I have seen our embryologists doing this in many patients with insufficient number of mature oocytes repeatedly . The fertilization rates are satisfactory and does lead to a meaningful embryo transfer . pregnancy rate is dependent on age and etiology related profile but cycle cancellations can be avoided significantly .
We have done this repeatedly in Gothenburg both with and without ICSI as I remember it. Experiences much like Monika´s above. Probably our laboratory chef, Kersti Lundin, knows about the details and the possible risks.