Why can't I get pregnant without using contraception?

Some people get pregnant in one go, but some people have not gotten pregnant after a long period of preparation, which makes men and women who are preparing for pregnancy feel a little discouraged. In fact, there are many reasons for infertility and you need to go to the hospital for examination. So, why is it that the couple has no problems but cannot conceive? How to calculate the ovulation period of girls?

The couple has no problems but cannot conceive. Why?

1. Fertilization of the egg cell: The couple's sexual intercourse may not occur around the ovulation period, thus missing the fertilization stage of the egg cell.

2. The egg cell is fertilized by multiple sperms: It is not common for the egg cell to be fertilized by multiple sperms in the human body. However, if there are too many sperms reaching the fertilization site of both fallopian tubes, multiple fertilization is still possible. Polyspermy prevents the normal development of oocytes and embryo implantation, and therefore pregnancy is impossible.

3. Production of aneuploid test tube embryos: The production rate of aneuploid test tube embryos in humans is very high. If the only embryo in a cycle is a non-aneuploid embryo, there is almost no chance of pregnancy. Moreover, the production of aneuploid test tube embryos is proportional to the age of the woman. This also explains why pregnancy is more tiring the older you are. Aneuploid test tube embryos have huge adverse effects, and patients may experience fetal malformations and miscarriage. Patients can only conceive a healthy baby through the third-generation IVF technology PGD before test tube embryo genetic selection.

4. Women's poor health: Overwork, insufficient rest, excessive work pressure, insufficient mental and emotional stability, etc., cause the human body to be in a suboptimal state, and the endocrine environment to be temporarily disrupted. The egg was fertilized, but no embryo implanted successfully.

Causes of Female Infertility

1. Excessive work pressure

The competition in the job market has increased the work pressure of many working women. If they are in this anxious state of mind for a long time, their uterus and ovaries will not secrete estrogen and will not ovulate, their menstrual periods will be disordered, or even amenorrhea will occur, and they will naturally not be able to get pregnant.

2. Sexual life during menstruation

Causes immune infertility. During menstruation, the cervix becomes more relaxed and its protective ability is greatly reduced. If you have sex, it is very easy for bacteria and blood to be brought to the pelvis, causing infection. If the backflow of menstruation remains in the pelvis, endometriosis will occur.