Table 1

	Day 5	Day 6	Day 7
Table 2. Pregnancy outcomes of euploid blastocysts biopsied and vitrified on either Day 5, 6 or 7 of in vitro culture
# of Embryos Transferred	145	92	16
# of Implantations	115	63	9
Implantation Rate	79.3%	68.5%	56.3%
Spontaneous Abortion Rate	2.6% (3/115)^a	1.6% (1/63)^a	22.2% (2/9)^b
Live birth rates	77.2% (112/145)^a	67.4% (62/92)^a	43.8% (7/16)^b
^a,b Combined row values with different superscripts, within sub-sections, were different (p<0.05).