A Complete Guide to IVF in the U.S., Mexico, and Japan: From Preconception to Embryo Transfer

As information about cross-border healthcare becomes more accessible, many families planning to have children are exploring IVF overseas in search of a treatment plan that better suits their medical needs, schedule, and personal circumstances.

What Preparations Are Needed Before IVF?

Before starting IVF treatment, the first step is a fertility assessment. Women typically undergo tests to evaluate ovarian reserve, hormone levels, and uterine conditions, while men can have a semen analysis to assess sperm health. Medical history, current medications, and family genetic history can also help doctors develop a treatment plan tailored to each individual.

If you plan to undergo IVF in the United States, Mexico, or Japan, it is advisable to prepare both partners’ passports, previous test results, and medical records in advance. You should also understand the clinic’s requirements, visa arrangements, and expected length of stay. Some tests can be completed locally before departure, allowing the overseas medical team to determine whether additional examinations are needed. This can reduce duplicate testing and make travel arrangements more efficient.

During preconception preparation, maintaining a regular sleep schedule, eating a balanced diet, exercising moderately, and avoiding smoking and excessive alcohol consumption are important lifestyle measures. Completing medical assessments and discussing the treatment plan in advance can also help patients better understand the procedures and timeline.

The IVF Process: From Ovarian Stimulation and Egg Retrieval to Embryo Development

IVF treatment typically begins with an assessment early in the menstrual cycle. Based on the test results, the doctor develops an ovarian stimulation protocol and uses medication to promote the development of multiple follicles. During stimulation, patients undergo scheduled ultrasound examinations and hormone monitoring, allowing the doctor to adjust medication according to follicular growth.

Once the follicles reach the appropriate stage of development, egg retrieval is scheduled. The male partner usually provides a sperm sample around the same time, after which the embryology laboratory performs fertilization. The resulting embryos continue to develop in the laboratory, where embryologists assess their development to guide subsequent treatment decisions.

For families who want to learn more about embryo chromosomes, third-generation IVF technology (IVF-PGT) is an important option to understand. This technology uses preimplantation genetic testing to provide additional genetic information about embryos, helping doctors develop an embryo transfer plan based on the test results and embryo development.

How Is Pregnancy Testing Scheduled After Embryo Transfer?

Embryo transfer is an important stage of the IVF process. The doctor determines the appropriate transfer timing based on embryo development, the condition of the uterine lining, and the overall treatment plan. The procedure generally does not require complex surgery, and the specific arrangements are determined by the medical team according to each patient’s circumstances.

After transfer, patients should take medication as directed by their doctor and maintain normal, moderate daily activities. The timing of pregnancy testing depends on the transfer method and the stage of embryo development. A blood test measuring human chorionic gonadotropin (hCG) is generally used to assess pregnancy, followed by an ultrasound examination according to the medical team’s schedule to evaluate pregnancy progression.

The IVF USA team, founded by Dr. Nathan Zhang, has provided overseas assisted reproduction consulting services for more than a decade, offering U.S. egg freezing, IVF in the United States, and third-party reproduction services to those who need them. With nearly 20 years of experience in the overseas assisted reproduction field, IVF USA recognized the growing diversity and personalization of reproductive needs early on and expanded into the Mexican market, becoming the Chinese agent for Power Fertility Center (POWER IVF) in Mexico. Dr. Nathan Zhang’s services have since expanded beyond the United States to include IVF and egg freezing in Mexico, IVF and egg freezing in Japan and Thailand, as well as services in Taiwan and Hong Kong. For those comparing IVF or egg freezing options in different countries, understanding their individual circumstances and clarifying their medical goals and timeline can help bring greater direction to each step of the process.