Is the first day of menstruation a safe period?

Is the first day after menstruation a dangerous period?

The dangerous period refers to the period from the end of the previous ovulation period to the next ovulation period. Generally speaking, if a woman has a normal menstrual cycle of 28 days, the period from seven days before the first day of menarche to eight days after the first day of menarche is the safe period.

The dangerous period is divided into the dangerous period before ovulation and the dangerous period during ovulation. The period from the day when menstruation ends to the day before ovulation is the safe period before ovulation. From the first day after the end of ovulation to the day before the next menstrual menstruation is the ovulation crisis period. The safe period during ovulation is safer than the safe period before ovulation. This is because some women are sometimes affected by environmental damage and mood swings, which causes ovulation to be advanced, so the dangerous period before ovulation will be shortened.

The seven days before menstruation and eight days after menstruation are the safe period for adult women, which is a calculation method used by most people for contraceptive measures. In addition to the calendar method, there is also the ovulation temperature method and secretion observation. However, the safe period is not absolutely safe. Sometimes women ovulate early or late, and the identification of the safe period will become invalid.

It is not easy to get pregnant if you have sex on the first day after the menstrual period, because there will be no ovulation period right after the menstrual period, so of course it is not easy to get pregnant, in other words, it is within the safety period.

However, on the first day after the menstrual period, although the menstrual period is over, the uterus is still very sensitive and the vagina has not recovered. If you have sex at this time, it is very easy to cause infection. Therefore, it is not suitable to have sex immediately on the first day after the menstrual period.

How to calculate the safe period for women

Women can calculate their safe period by using the calendar method, ovulation temperature testing method and female secretion observation.

1. Calendar method:

If the menstrual cycle is always regular, ovulation may be on the 14th day after the menarche. After the egg is released, it can survive for about 2-5 days, and the male sperm can survive for 1-3 days after entering the female reproductive system. Therefore, not having sex 3-4 days before ovulation and 5-7 days after ovulation can avoid pregnancy.

2. Ovulation temperature method:

Ovulation body temperature refers to the normal body temperature of a person after waking up in the morning. This is usually the lowest body temperature of the day. For women of normal fertile age, their body temperature rises immediately after ovulation and continues until the beginning of the next menstrual cycle. Use the changing trend of a woman's basal body temperature to find her ovulation period, and avoid having sex 3-4 days before and 5-7 days after.

3. Observation of changes in female secretions:

Women's secretions change regularly with the different stages of the menstrual cycle. During ovulation, the amount of mucus increases, the female vagina feels damp and cold, the mucus becomes clear, and the mucus can be drawn into metal threads, up to 10 centimeters long. The last day this type of mucus lasts is usually the ovulation period. Do not have sex during the first 3-4 days and the last 5-7 days.