Eligibility Criteria:
Inclusion Criteria:
* pregnant between 18-24 weeks
* had no complaints
* between the ages of 18-35
* conceived with in vitro fertilization or spontaneously
Exclusion Criteria:
* history of endocrinopathies (including diabetes mellitus, hyperprolactinemia, Cushing's disease, and congenital adrenal hyperplasia), systemic diseases (e.g. asthma), collagen disorder, hypercholesterolemia, sickle cell anemia, or neoplasm,
* those who had a history of coronary artery disease, angina, or myocardial infarction, or a history of hypertension, coronary arteritis, and electrocardiographic changes that suggest any known history of vascular, infectious, or inflammatory disease, maternal autoimmune disease,
* use of any drugs other than those used for IVF (e.g. insulin sensitizing drugs, oral contraceptives, antiandrogens, statins, aspirin, and corticosteroids) in the 3 months before the pregnancy,
* multiple pregnancy,
* present cigarette and alcohol use,
* abnormal renal, hepatic, and thyroid function test results;
* refusing to participate in the study,
* abnormal fetal findings (fetal anomaly, increased nape transparency, first-second trimester screening test disorder),
* cases who did not meet the criteria for pregnancy after the first tube treatment (ICSI-ET) because of normoresponder, unexplained infertility, or male factor