The day my stimulation cycle ended, my doctor asked me: fresh embryo transfer, or freeze everything? I froze up on the spot. Later I realized that this one choice directly affects how high your IVF success rate is — and on my Thailand surrogacy journey, it also meant how much extra money and how many extra months. Today I’m laying out my ledger and my data, line by line.
Fresh or Frozen Embryo Transfer: How My Doctor Did the Math With Me
I retrieved 14 eggs, which fertilized into 9 embryos. But my lining was only 6.8mm and my progesterone was running high. My doctor flat-out said no to a fresh transfer — forcing it would just waste embryos. She showed me a dataset: when the lining doesn’t meet the threshold, fresh embryo transfer implantation rates can drop 10 to 15 percentage points. Honestly, I didn’t want to wait another month, but the numbers were right there. I had nothing to say.
Here’s what you can use immediately: before any transfer, ask two questions — is your lining at least 8mm, and was progesterone within range on retrieval day? If either one fails, proactively ask to switch to a frozen cycle. Don’t push through.
Blastocyst Rates: The Difference Can Be Tens of Thousands and Several Months
Before picking my clinic in Thailand, I asked the coordinator for the lab’s blastocyst data. One clinic quoted 30,000 RMB cheaper, but its blastocyst formation rate was only 35%. Another hit 52%. Of my 9 embryos, the first lab would have yielded about 3 blasts; the second, around 5. For someone like me — early 40s with diminished ovarian reserve — every extra blastocyst is one more shot.
This is r logic of “how high is your IVF success rate”: it’s not a number on the clinic’s brochure. It’s your own egg quality multiplied by the lab’s level.
Use this: before signing, demand the clinic’s blastocyst rate and live birth rate per transfer from the past year, broken down by age group. If they won’t provide it, move to the next clinic.
Which Countries Allow Surrogacy? I Ruled Out Three Before Landing on Thailand
This question took me two full weeks to research. California in the US is legal but demanding on singles and budgets — at 550,000 RMB, ours was tight. Georgia only opens to married heterosexual couples. Ukraine’s situation was unstable at the time. After 2026, Thailand’s commercial surrogacy is open to certain qualifying families under specific conditions; we went through a fully legal arrangement with a clear process for contracts and parental rights confirmation.
There’s no single answer to “which countries allow surrogacy.” It depends on your marital status, your budget, and the pathway for your child’s citizenship and household registration back home.
Use this: make a table with three rows — marital status, budget ceiling, and your child’s documentation needs for returning home. Check each country’s laws against it, strike out anything that doesn’t fit, and don’t let agencies tell you stories.
The Surrogate’s Screening Report: The Three Numbers I Stared At
The day the agency sent the surrogate’s profile, my mother-in-law only looked at age — 25, nice and young. But I focused on: two prior full-term vaginal deliveries, BMI 22.3, and a passed psychological evaluation with no major life upheavals in the past year. In Thailand’s compliant surrogacy process, a surrogate must clear three gates: infectious disease screening, uterine environment assessment, and psychological evaluation. I’ve seen someone pick a surrogate without a psych evaluation to save money, communication broke down mid-cycle, and the whole thing dragged on for two months.
Use this: when you get a surrogate’s profile, ask three questions first — how many full-term deliveries, what’s her BMI, and was the psychological evaluation done by a third party? If any answer is missing, demand it before you even look at the contract.
If you’re also running the “how high is my IVF success rate” math, here’s my advice: first, get all your test reports in hand — AMH, lining, semen analysis, nothing skipped. Then take those reports and compare real, age-segmented data from two or three clinics. Only then decide fresh or frozen transfer, and which country. Don’t reverse the order. I’ve watched too many people pay the deposit first and do homework later — money spent, cycle bumping along the whole way.