The purpose of this study is study the possible relationship between various lifestyle habits of men and women (age, body mass index, diet, exercise, alcohol, tobacco, coffee, etc..) and live birth rate after in vitro fertilization-intracytoplasmatic injection (IVF-ICSI).

It is a prospective study of couples with primary or secondary infertility, with indication for IVF. The main objective is to relate different lifestyle factors (age, BMI, physical activity, tobacco consumption, alchol, drugs, work and diet) with reproductive outcomes obtained in terms of total oocytes, M II, fertilization and implantation rates pregnancy and abortion rates and live birth. It also attempts to correlate the different habits of life in men with seminal parameters. For this, both members of the pair separately should answer a validated questionnaire before beginning the therapeutic process.

Inclusion Criteria:

• Couples who want a pregnancy
• Mediterranean or Caucasian Ethnicity.
• Infertility to justify treatment with IVF / ICSI-TEI.
• First cycle of IVF / ICSI.
• Between 18 and 37 years (inclusive)
• Presence of one or both ovaries and uterus can withstand embryo implantation and pregnancy.
• Body mass index (BMI) <40.
• Absence of pregnancy before starting ovarian stimulation.
• Having given their written consent.

Exclusion Criteria:

• Clinically important disease.
• Inclusion in previous cycles of assisted reproduction.
• Unexplained vaginal bleeding.
• Any contraindication to become pregnant.
• Known allergy to preparations of gonadotropins or its excipients.
• Patients undergoing oocyte donation cycles -

The study sample is obtained from the population of infertile couples who meet the criteria for inclusion in a protocol for controlled ovarian stimulation for IVF/ICSI.