What to Expect When Freezing Your Eggs: A Guide to Timing and Process
Fertility Preservation
From your first consultation through retrieval and storage, the full egg freezing process typically spans six to eight weeks. Here is a detailed breakdown of every phase, what to expect, and how to plan your timing.
Dr. Sonja Kristiansen explains fertility preservation at Houston Fertility Center.
One of the most common questions we hear from patients considering egg freezing is how long the process actually takes. The short answer: the active treatment cycle runs approximately two weeks. But the full timeline, from your first consultation through retrieval and storage, typically spans six to eight weeks.
Here is a detailed breakdown of each phase, how long it takes, and what to expect at every stage of the egg freezing process at Houston Fertility Center.
At a Glance
Egg Freezing Timeline Overview
The Details
Each Phase of the Egg Freezing Timeline
Weeks 1–2: Initial Consultation and Diagnostic Testing
The egg freezing timeline begins with a consultation at our Houston office. During this visit, we review your medical history, discuss your goals, and order baseline testing to evaluate your ovarian reserve:
- AMH blood work — measures anti-Müllerian hormone levels, which reflect the number of eggs remaining
- Antral follicle count — a transvaginal ultrasound to visualize and count the small follicles in your ovaries
- Hormone panels — additional blood work to assess overall reproductive health
Results are typically available within a few days. We then schedule a follow-up to review findings and build your treatment plan. This phase takes approximately one to two weeks.
Weeks 3–6: Treatment Planning and Preparation
Once your results are in, we design a stimulation protocol specific to your ovarian reserve and health profile. This phase also involves coordinating your medication order and timing your cycle start date. Depending on scheduling and your menstrual cycle, this preparation window is typically two to four weeks.
Weeks 6–8: Ovarian Stimulation (Cycle Days 1–14)
Stimulation begins on day 2 or 3 of your next menstrual cycle, which is why the prep window in weeks 3–6 depends partly on when your period arrives. This is the most active phase of the egg freezing timeline. You will self-administer injectable medications daily for 10 to 14 days to stimulate the ovaries to produce multiple eggs in a single cycle.
During stimulation, you'll visit our clinic every two to three days for monitoring. Each appointment includes blood work and an ultrasound to track follicle growth, and we adjust medication dosages based on your response. Most patients have four to six monitoring visits total during this phase.
Our woman-led care team provides hands-on guidance with injections at your first appointment and remains available throughout the cycle for any questions.
36 Hours Before Retrieval: The Trigger Shot
When follicles reach the target size, we schedule a precisely timed injection known as the trigger shot. This signals the eggs to complete their final maturation. The timing is critical. Retrieval is performed exactly 36 hours later to collect eggs before ovulation occurs naturally.
Retrieval Day: 15 to 20 Minutes
Egg retrieval is a brief outpatient procedure performed under light sedation in our on-site laboratory. Using ultrasound guidance, eggs are collected from each mature follicle through a thin needle. The procedure itself typically takes 15 to 20 minutes.
Plan to have someone drive you home afterward. Most patients return to normal activities within one to two days. Mild bloating or cramping is common and resolves quickly.
Same Day: Vitrification and Long-Term Storage
Immediately following retrieval, our embryology team evaluates the collected eggs in our on-site lab. Mature eggs undergo vitrification, a rapid-freezing technique that prevents ice crystal formation and preserves cellular integrity.
“Because our laboratory is in the same facility as our procedure rooms, eggs go directly from the procedure room to the embryologist within minutes with no transport delay.”
Your eggs are stored securely in the lab according to your consent and storage agreement.
Timing Your Decision
When to Start the Egg Freezing Timeline
While the treatment cycle itself takes only a few weeks, the decision of when to begin matters significantly. Age is one of the most important factors in egg freezing outcomes, because egg quality and quantity decline naturally over time, with fertility declining gradually in the early 30s and more rapidly after about age 37.
In Your 20s
Peak Quality
Egg quality is at its peak. Freezing during this window provides the strongest statistical outcomes, though many women may not yet feel the need to pursue preservation.
Ages 30 to 34
Often the Ideal Window
Egg quality remains strong, and most women have a clearer picture of their family-building timeline at this stage.
Ages 35 to 37
Still Effective
Egg quality declines more noticeably. Freezing remains effective, though more than one cycle may be needed to collect enough eggs.
After 38
Individual Evaluation
Success rates decrease each year. A fertility evaluation can help determine whether egg freezing or another approach is the best path forward.
A baseline assessment of your ovarian reserve through blood work and an ultrasound gives us concrete data to guide your decision, regardless of age. The consultation itself takes less than an hour.
Curious Where You Stand?
A baseline ovarian reserve assessment takes less than an hour and gives you concrete data to guide your decision.
Planning for Success
How Many Eggs Should You Freeze?
The number of eggs you may want to freeze affects how many cycles appear on your egg freezing timeline. Estimates from peer-reviewed predictive models (including the widely cited Goldman et al. age-stratified model used by many U.S. fertility clinics) suggest the following targets for a reasonable probability of one live birth:
Under 35
15–20
Mature Eggs
Often achievable in a single cycle.
Ages 35–37
20–25
Mature Eggs
May require two retrieval cycles spaced one to two months apart.
38 and Older
Individualized
Per Patient
Higher numbers are typically needed; we discuss realistic expectations based on your individual results.
We review results after each cycle and recommend whether additional retrievals would meaningfully improve your chances.
Egg freezing can improve future reproductive options, but it cannot guarantee a future pregnancy or live birth. Outcomes depend on a number of individual factors, which we discuss in detail during your consultation.
When the Time Comes
Using Your Frozen Eggs
When you are ready to pursue pregnancy, your frozen eggs are thawed and fertilized using intracytoplasmic sperm injection (ICSI). At our practice, the resulting embryos are cultured in our laboratory and undergo preimplantation genetic testing (PGT), which is included with IVF and INVOcell® treatments at Houston Fertility Center, not offered as a separate add-on.
Because PGT requires embryos to be cryopreserved while results are pending, embryo transfer is typically performed as a frozen embryo transfer at our practice. Research suggests that frozen embryo transfer can offer advantages in certain cases, including more flexible cycle timing and the ability to optimize the uterine environment before transfer.
Our Practice
Egg Freezing at Houston Fertility Center
Several features of our practice directly benefit patients pursuing fertility preservation:
On-Site Embryology Laboratory
Your eggs are processed and stored in the same facility where they are retrieved, minimizing handling time and environmental variables.
All-Women Care Team
Every direct care provider at Houston Fertility Center is a woman. This is a deliberate choice that reflects our belief that fertility care is deeply personal, and that many patients feel more comfortable navigating an intimate medical process with women providers throughout.
Multilingual Staff
Our team supports clear communication across our diverse patient community.
Physician-Led Continuity
Dr. Kristiansen is personally involved in each patient's treatment plan from evaluation through retrieval, providing consistent, individualized care.
Ready to Start Your Egg Freezing Timeline?
A consultation is the first step. We can evaluate your ovarian reserve and help you determine whether egg freezing aligns with your goals and timeline.
Houston Fertility Center • 9055 Katy Fwy, Ste 450, Houston, TX 77024
Serving Houston, Cypress-Fairbanks, and surrounding areas.