Some people cycle right on time. For others like me it was close to 38 days as opposed to 28 days. It just depends, all the hormones affect everyone a little differently. Good luck. HTH.
Me 37, DH 38 Morphology
2 DD from previous marriage 14 & 17
IVF #1 w/ ICSI 6/07= BFN
IVF #2 w/ ICSI 10/07= BFN
FET #1 1/08= BFP but MC @ 8 weeks
FET April 20 (Last try), 2010, BFN
In the beginning< I was usually right on schedule--about 28 days. However, the last couple of cycles have messed me up and I am more like about 31-32 days.