Routine semen; genital ultrasound and sex hormones, blood group. Female Blood test for sex hormones on the third day of menstruation (FSH, LH, E2, T, PRL), TSH, AMH, liver and renal function, fasting blood glucose, Hepatitis B 2-positive half, Hepatitis B DNA, Hepatitis C, Syphilis (RPR), AIDS (HIV), blood type, chromosomes. Non-menstrual check for routine leukorrhea, leukorrhea mycoplasma, chlamydia, gonococcus culture, cervical scraping. Tubal imaging, ultrasound of our uterine adnexa. Three certificates Identity card of both parties, marriage certificate, birth certificate or certificate of not having a child (issued by family planning organization, with a fixed telephone number of Family Planning Office)