There's really no "safe" period kiddo, just times when it's less likely that the girl will get pregnant.
why risk analysis done
please tell me what is actual risk
Still a risk of STD.
It's actually a myth that you can only get pregnant one day a month. You are at your most firtile right before your period when you are ovulating. Your period is a shedding of protective tissue that is built up through the month to protect a fertilized egg. When it isn't fertilized it sheds causing your period. If that's the last time you had sex your probably going to at the very least spot since the hormones needed to stop menstruation will not have developed yet. This totally doesn't mean your pregnant there is always a risk but plenty of people make a mistake once and don't end up with babies! Im pretty sure you can test in a week or two. Home preg tests are notorious for false negatives. Planned Parenthood will do a preg test for free or very cheap.
risky people have no time of taking risk
Skipping your period with NuvaRing does not increase the risk of pregnancy. Using hormonal birth control with a shorter or absent break may actually lower the risk of pregnancy.
That close to your period, it's hard to tell. Precum always carries the risk of getting you pregnant too, but if you're concerned, pick up a pregnancy test to be sure.
Develop controls and make risk decisions
There is a certain degree of risk in everything that will ever be done. The degree of risk should always be beat by the reward.
inflation
yes
No you are not. The risk is higher in the last days.