That depends what aspect you are considering.
You can get an STI during any time of the monthly cycle - assuming, of course, that one of the partners is infected.
The risk of a pregnancy (assuming you don't want a pregnancy) is quite small during the period.
Apart from the risk of infection, the blood itself doesn't pose any significant risk, though it may be a bit unpleasant for sex.
There are no "safe" days to have sex. Use birth control.
There is no "safe" time during a month to have unprotected sex!!
Yes it's perfectly safe unless the doctor have said no to her having sex due to problems during the pregnancy. But with a normal pregnancy there are no problems.
Yes you can have sex during your period. Not all women are comfortable with it but orgasms helps against cramps.
By "do" I assume you mean a very disrespectful scumbag way of sexying 'have sex with' - yes, you can have sex with a women during menstruation.
If you are referring to a safe time to have unprotected sex without the possibility of becoming pregnant then remember this. There are no safe days! Some women - while rare - have become pregnant even while on their period.
It is highly not likely that a female would ovulate while having a period. Sex can certainly occur but most people refrainf ROM sex for hygiene reasons and many females do not feel their best during a period.
immediately before and immediately after a period.
If you have sex during your period, there will be no side effects. However, you can still get pregnant if you have sex while on your period.
While there is nothing wrong or unusual about having sex during your period, if you are not using birth control you can't assume that you are safe from getting pregnant. Different women are fertile at different times in their menstrual cycle, and ejaculated sperm can stay viable in a woman's body for several days. This means that, yes, you may be unlucky enough get pregnant during your period. Use some form of birth control. Some women do use fertility awareness methods to learn about when they are ovulating, and plan sex this way, but it is neither easy nor foolproof.
Some Answer More than some, actually most women who have experienced sex while on their peroids want more of the same each time they bleed and the first week before their period, during their period and the week after their periods they are at their hottests.
They are exempted of praying and holding or reading the Quran. They are exempted also from fasting. The days not fasted by women during Ramdan when on their period (menstruation) should be compensated for after the month of Ramadan when available. Also intercourse sex with wife during her menstruation (Period) is forbidden in Islam.