❄️ Fertility Preservation

Egg Freezing: The Complete Guide to Preserving Your Fertility

Everything you need to know about freezing your eggs—the ideal age, realistic success rates, true costs, and whether it's right for your situation.

The bottom line: Egg freezing preserves your fertility at your current age, giving you more options later. It works best when done before 35, becomes less effective after 38, and costs $10,000-15,000 per cycle plus annual storage. It's not insurance—but for the right person at the right time, it can be genuinely valuable.

Is egg freezing right for you?

Let's start with the decision itself, because the logistics don't matter if this isn't the right choice for you. Egg freezing makes sense in some situations but not others.

🤔 The Decision Framework

Consider if...
  • You're 30-37 and don't have a clear timeline for children
  • You're pursuing a career, education, or life goal that delays parenting
  • You haven't found the right partner and want options
  • You're facing medical treatment that could affect fertility (chemo, surgery)
  • You have family history of early menopause
  • The peace of mind would reduce your anxiety about the future
May not be worth it if...
  • You're under 30 and likely to have children before 35
  • You're over 40 (success rates are significantly lower)
  • You can't comfortably afford it without going into debt
  • You're in a stable relationship and could try soon
  • You're not sure you want children
  • You'd stress about "using" the eggs later

The honest truth about egg freezing

Here's what marketing materials often don't emphasize: egg freezing is not fertility insurance. It's more like... fertility options expansion. Each frozen egg has roughly a 4-12% chance of eventually becoming a baby (depending on your age when you froze). Most women who freeze eggs never use them—they either conceive naturally or don't end up needing them.

The women who benefit most are those who would have struggled to conceive with their older eggs but succeeded using their younger frozen ones. You can't know in advance if that's you.

That said, for women who freeze at the optimal age and later face fertility challenges, egg freezing can be the difference between having a biological child and not. That's not nothing.

Age matters: Success rates by when you freeze

Your age at the time of freezing is the single biggest factor in success rates. Eggs frozen at 32 are fundamentally different from eggs frozen at 39—and the math reflects that.

Under 35
60-80%
success with 20 eggs
35-37
45-65%
success with 20 eggs
38-40
25-45%
success with 20 eggs
Over 40
10-25%
success with 20 eggs

These numbers assume you retrieve enough eggs. The number you need varies dramatically by age:

⚠️ The numbers aren't guarantees

Even with optimal age and plenty of eggs, not every egg survives freezing, fertilizes, develops into a viable embryo, implants, and becomes a baby. Each step has attrition. That 60-80% success rate with 20 eggs means 20-40% of women in that situation still won't have a baby from their frozen eggs.

The optimal window: 30-35

If you're considering egg freezing, the ideal age range is 30-35. Here's why this window is special:

Why not younger? Before 30, many women find partners or life circumstances change before they'd need the eggs. You're paying for storage for years you might not need. Also, younger women often respond very strongly to medications and have higher risk of overstimulation complications.

Why not older? After 35, egg quality begins declining more rapidly. After 38, you need more eggs to achieve the same chance of success, often requiring multiple expensive cycles. After 40, the calculus becomes unfavorable—donor eggs start offering better odds.

Between 30-35, you typically get good egg quality and quantity while being close enough to potentially using them that the investment makes sense.

The egg freezing process: What to expect

The process takes about 2-4 weeks from start to retrieval. Here's what happens:

📋 Egg Freezing Timeline

📊
Initial Consultation & Testing (Week 0)

Blood work (AMH, FSH, estradiol) and ultrasound to assess ovarian reserve. Your doctor determines if you're a good candidate and estimates how many eggs you might retrieve.

💉
Ovarian Stimulation (Days 1-10)

Daily hormone injections (gonadotropins) stimulate multiple egg development. You'll have monitoring appointments every 2-3 days for blood work and ultrasounds. This is the most intense phase—expect some bloating, mood changes, and tenderness.

Trigger Shot (Day ~10)

When follicles are ready, you take a "trigger shot" to complete egg maturation. Retrieval is scheduled exactly 36 hours later.

🏥
Egg Retrieval (Day ~12)

A quick outpatient procedure under sedation. A needle guided by ultrasound retrieves eggs from your ovaries. Takes 15-20 minutes. You'll need someone to drive you home and should rest that day.

❄️
Vitrification & Storage (Day 12+)

Mature eggs are flash-frozen using vitrification. They're stored in liquid nitrogen indefinitely. You'll pay annual storage fees to keep them preserved.

What the injections are really like

Most women are nervous about the injections, but they're more manageable than expected. The needles are small (subcutaneous, like diabetic insulin needles). The first one is the hardest—after that it becomes routine.

You'll typically inject 1-3 medications daily for 10-12 days. Many women inject themselves, though you can have a partner or friend help. Some clinics offer in-office injection training and support.

Side effects to expect

Serious complications (ovarian hyperstimulation syndrome, infection, bleeding) are rare but possible. Your clinic will monitor closely and adjust medications if needed.

The real cost breakdown

Egg freezing is expensive, and the costs are often higher than initially quoted. Here's a realistic breakdown:

Item Cost Range
Consultation & testing $200 - $500
Medications (per cycle) $3,000 - $6,000
Monitoring appointments $1,000 - $2,000
Egg retrieval procedure $5,000 - $8,000
Anesthesia $500 - $1,000
Initial freezing Included - $1,500
Total per cycle $10,000 - $18,000

Don't forget ongoing costs

💡 Total Investment Example

A 33-year-old who does two cycles and stores for 5 years before using:

Ways to reduce costs

When you're ready to use them

When you decide to use your frozen eggs, you'll do a standard IVF process—minus the retrieval since you already have eggs. Here's what happens:

  1. Eggs are thawed: Vitrification technology means ~90% of eggs survive thawing
  2. Fertilization (ICSI): Sperm is injected directly into each egg. About 70-80% fertilize.
  3. Embryo development: Embryos grow for 5-6 days. Some won't develop normally.
  4. Uterine preparation: You take hormones to prepare your uterine lining
  5. Embryo transfer: One (sometimes two) embryos transferred to your uterus
  6. Two-week wait: You wait to see if implantation occurs

Not every egg becomes a baby. The attrition at each step means if you freeze 15 eggs at 34, you might end up with 8-10 embryos, of which 3-5 might be viable for transfer.

Egg freezing vs. embryo freezing

If you have a partner, you might consider freezing embryos instead of eggs. Here's the comparison:

Egg freezing advantages: Eggs are entirely yours—no legal complications if the relationship changes. Better for uncertain situations.

Embryo freezing advantages: Higher survival rates than eggs (embryos are more robust). Better data on success rates. You know immediately how many viable embryos you have.

Most reproductive endocrinologists recommend embryo freezing if you're in a committed relationship where you're confident about your partner. Choose egg freezing if you're single or uncertain about your relationship's future.

How to choose an egg freezing clinic

Look for:

Frequently asked questions

How long can eggs stay frozen?

Theoretically indefinitely. Vitrified eggs don't "age" in storage—they're essentially in suspended animation. Babies have been born from eggs frozen for 10+ years with no increased risk. The limiting factor is usually your age at the time you want to carry a pregnancy (most doctors recommend against pregnancy after 50).

Does egg freezing affect my current fertility?

No. The eggs retrieved would have been used or lost that cycle anyway. Egg freezing doesn't "use up" your reserve faster—it captures eggs that would otherwise be gone. Your normal fertility timeline continues unchanged.

Can I freeze eggs if I have PCOS or low AMH?

Yes to both, though the approach differs. PCOS patients often respond very strongly to stimulation and may get many eggs per cycle (but need careful monitoring to avoid overstimulation). Low AMH patients may retrieve fewer eggs per cycle and might need multiple cycles to bank enough.

What if I never use my frozen eggs?

Many women never use them—some conceive naturally, others' life circumstances change. Options for unused eggs include: discarding them, donating to another person, donating to research, or continuing to store them. Your clinic will have consent forms covering these scenarios.

Is 37 too old to freeze eggs?

Not too old, but the window is narrowing. At 37, you can still get good quality eggs, but you'll likely need to freeze more of them (and potentially do multiple cycles) to achieve good odds. The cost-benefit analysis becomes more marginal after 38. Talk to a reproductive endocrinologist about your specific AMH and follicle count.

What are the risks of babies born from frozen eggs?

Extensive research shows no increased risk of birth defects, developmental delays, or health problems in children born from frozen eggs compared to natural conception. The freezing process doesn't damage the eggs' DNA. Children from frozen eggs develop normally.

Medical Disclaimer: This article is for informational purposes only and does not constitute medical advice. Egg freezing outcomes vary based on individual factors. Consult with a reproductive endocrinologist to discuss your specific situation, ovarian reserve testing, and personalized recommendations.