About 2 days into intercourse.
some peoples periods last 2 days we are all different.
one to two weeks. Ask your doctor if unsure.
It's never a problem to take a pregnancy test; it's better to be safe than to be sorry! Since you missed 2 periods, if you've had unprotected or unprotected intercourse sometime about 2 or 3 months ago, I'd see a doctor or get more pregnancy tests.
2 days without sexual intercourse.
This method of contraception can be used only if your periods are regular. In 28 days cycle ovulation occurs on day 14 and 30 days cycle it occurs on day 16 of menses. So use condom on 3 days before and after this expected date. Feed in the cell to alarm you from danger dates 2 to 3 times/day.
Safe period is not a continuous period in menstrual cycle. We know a woman is fertile only in the ovulatory period, and infertile in other days. And she can not has sexual intercourse in the menstrual period when she's bleeding. So the days in a menstrual cycle except menstrual period and ovulatory period is safe period. In safe period, a woman could has sexual intercourse and almost no chance to be pregnant. But it is not very reliable method for contraception because we cannot predict the next ovulation time precisely. Now we consider the first bleeding day as the first day of menstrual cycle. The days before the 7th day is very safe for contraception. If a woman stopped bleeding in 5 days, she has 2 days to have sexual intercourse without condom. And the last 4 to 5 days are also very safe. You could choose these days in safe period to avoid pregnancy. I suggest you user some software or online safe period calculator.
no they adjourn for much longer periods all the time
Some girls have it for a few days and to answer your question yes it is normal. So yes some girls have it for only 2 days.
It's 2/3 of its orbital period (of 88 days).58 and 2/3 days.
Counting days is a prediction, not truth. Your body isn't clockwork perfect, things like that will happen. This is part of the reason why counting days and "safe" periods is so unreliable as a means of avoiding pregnancy.
Different periods last different times. I think 2 days is the very minimum