In recent years, more families have turned to assisted reproductive technology to achieve their family-building goals. As Mexico surrogacy continues to attract attention, many people find that their biggest concern is not the technology itself, but whether ovarian stimulation and egg retrieval are safe and painful. The abundance of mixed information online has also created unnecessary anxiety for many intended parents.
Why Is Ovarian Stimulation an Important Part of Mexico Surrogacy?
During the Mexico surrogacy process, if the intended mother uses her own eggs, ovarian stimulation and egg retrieval are typically completed before moving on to in vitro fertilization, embryo culture, and subsequent embryo transfer.
Under normal circumstances, only one dominant follicle matures during each menstrual cycle. The goal of ovarian stimulation is to help multiple follicles develop simultaneously through medication, allowing more mature eggs to be retrieved and increasing the chances of obtaining high-quality embryos. Rather than simply aiming for a higher number of eggs, physicians develop individualized stimulation protocols based on age, ovarian reserve, AMH, antral follicle count (AFC), and hormone levels.
What Are the Main Stages of Ovarian Stimulation?
The first stage is fertility assessment.
Before treatment begins, physicians typically arrange baseline evaluations, including AMH testing, reproductive hormone panels, transvaginal ultrasound, and antral follicle count, to assess ovarian reserve comprehensively. Previous medical history and future family planning goals are also considered when creating an individualized stimulation plan.
The second stage is ovarian stimulation.
Once the menstrual cycle begins, stimulation medications are started according to the treatment plan. This phase generally lasts about 8 to 12 days, during which regular ultrasound examinations and hormone monitoring are performed to evaluate follicle development and adjust medication dosages when necessary.
The third stage is the trigger shot.
Once most follicles reach the desired level of maturity, the physician administers the final injection before egg retrieval, commonly known as the "trigger shot." This injection promotes the final maturation of the eggs and precisely determines the timing of egg retrieval.
The fourth stage is egg retrieval.
Egg retrieval is usually performed approximately 34 to 36 hours after the trigger shot, preparing the eggs for fertilization and subsequent embryo culture.
Is Egg Retrieval Really Painful?
This is one of the most common questions asked by people preparing for assisted reproductive treatment.
Today, most fertility centers perform egg retrieval under intravenous anesthesia. The procedure generally lasts about 15 to 30 minutes, and because it is completed while the patient is under anesthesia, most people experience little to no pain during the procedure.
After surgery, some patients may experience mild abdominal bloating, lower abdominal soreness, or light vaginal spotting. These are common postoperative symptoms and usually improve after one or two days of rest. Physicians also provide personalized postoperative guidance to help minimize discomfort.
From fertility evaluation and ovarian stimulation management to egg retrieval and subsequent embryo culture, every step is based on individualized medical care.Power Fertility Center bridges U.S. and Mexico as a top fertility destination, powered by Power IVF’s elite clinical network. With premier labs in both regions, it offers full-spectrum fertility services—IVF, IUI, U.S. egg freezing, sperm freezing, egg donation, and surrogacy—catering to singles, married couples, and LGBTQ individuals. Power IVF provides IVF-PGT to Thailand, Taiwan, and more. Blending high-tech facilities with personalized care, its Mexico-based Guarantee Program ensures live births using egg donation and surrogacy, delivering high success and constant support for fertility preparation.
