It takes 17 days for ovulation to implant.

After ovulation, the sperm and egg combine and the embryo implants on the 6th to 7th day. When the embryo implants, it has already reached the uterus, but it is still small at that time and cannot be seen with B-ultrasound. It is only about 20 to 30 days after the embryo implants that the small fetal sac can be clearly seen with B-ultrasound. However, 3-4 days after the embryo implants, a weak positive result can be detected using a pregnancy test strip. So what symptoms will occur after the embryo implants? Some people will noticeably feel a drop in body temperature during ovulation, and feel soreness, while others will have a fever or a cold. Let's take a look below!

First, body temperature will drop during ovulation.

Second, there is a slight pain and sour feeling in the lower abdomen.

Third, some women experience swelling and pain in their breasts and tenderness in their nipples.

Fourth, fever and cold. You may feel more tired and have a decreased appetite.

The above symptoms will vary from person to person. Generally, if the menstrual period has not come after 10 days, you can use an early pregnancy test to test yourself.

How does the embryo implant during ovulation period 17 work?

The embryo implants in the ovulation period of women, so this kind of situation should not happen. This is because the best pregnancy ability is within 24 hours after the egg is released, and there is no pregnancy ability about three days after ovulation. Therefore, three days after ovulation, the sperm and egg will combine, and the embryo must implant about ten days after ovulation. Therefore, it is impossible for the embryo to implant during the ovulation period of 17, because the sperm and egg cannot implant so many years later. Therefore, we should consider that the deviation is caused by the inaccurate detection of ovulation test strips.

Causes of unsuccessful embryo implantation

1. The combination of sperm and egg itself has defects: Because the combination of sperm and egg itself has defects.

2. Uterine factors: Failure of embryo implantation may be due to uterine hypoplasia, cervical fibroids, uterine intrauterine polyps, intrauterine adhesions, uterine wall tuberculosis, etc.

3. Immune factors: Scientific research on immune factors in recent years has found that there are two immune conditions that affect pregnancy.

Immunity: Sperm, seminal plasma or sperm-egg combination are antigenic substances. After being absorbed by the vaginal and uterine epithelial cells, antibodies are produced through immune response, which prevents sperm and egg cells from fusing or sperm-egg combination from implanting.

Autoimmunity: Infertile women have autoantibodies in the zona pellucida of their blood cells, which react with the zona pellucida to prevent the male sperm from penetrating the egg cell, thus preventing fertilization.

4. Ovarian corpus luteum insufficiency: If a woman’s progesterone metabolism is insufficient, abnormalities will be found in her uterine wall, which will affect embryo implantation.

5. Mental stress and anxiety: especially severe anxiety caused by not being pregnant and excessive mental stress.