Investigating Micro-Manipulation Procedures for Assisted Hatching Timing

Inclusion Criteria for participants:

1. Patients undergoing an IVF cycle with plan for subsequent FET of a single euploid embryo
2. \<4 2PNs prior to randomization
3. Female partners age \<42 years old at start of VOR cycle
4. Normal ovarian reserve:

   1. AMH ≥ 1.2 ng/mL
   2. AFC ≥ 8
   3. FSH ≤ 12IU/L
5. BMI \<38
6. Patients who desire to transfer the best quality embryo for their embryo transfer.

Exclusion Criteria for participants:

1. All patients who do not voluntarily give their written consent for participation
2. Patients with a prior failed IVF cycle - defined as no blastocysts
3. Patients with a history of more than one failed euploid embryo transfer
4. Donor oocyte cycles
5. Gestational Carriers
6. Male partner with \<100,000 total motile spermatozoa per ejaculate (donor sperm is acceptable)
7. Use of surgical procedures to obtain sperm
8. Communicating hydrosalpinges without a plan for surgical correct prior to frozen embryo transfer
9. Endometrial Insufficiency, as defined by a prior cycle with maximal endometrial thickness \<6mm,), or persistent endometrial fluid
10. Single gene disorders, chromosomal translocations, or any other disorders requiring a more detailed embryo genetic analysis than standard PGT-A