Overview
- Hypotheses
We hypothesize that serum progesterone levels on the day of embryo transfer in HRT-FET cycles are positively associated with clinical pregnancy rates.
- Aims
To evaluate the relationship between serum progesterone levels on embryo transfer day and clinical pregnancy outcomes in frozen-thawed embryo transfer cycles using hormone replacement therapy (HRT).
Primary outcome:
To compare the incidence of clinical pregnancy outcome in those infertility patients undergoing frozen embryo transfer with caterized Progesterone level on the day of embryo transfer
Secondary outcomes:
Biochemical pregnancy rate. Implantation rate. Early pregnancy loss rate. Ectopic pregnancy rate.
Eligibility
Inclusion Criteria:
- Patients undergoing FET cycles
- Infertility patients aged \>18 years old and \< 42 years old
- BMI \< 30 kg/m2
- Transfer of at least one good-quality embryo.
Exclusion Criteria:
- Severe endocrine disorders (e.g., thyroid dysfunction, premature ovarian failure).
- Severe uterine factors without treatment (severe endometriosis, extensive or subendometrial fibroid, uterine adherent, endometrial polyps)


