The Vietnamese central bank allowed the country's currency, the dong, to slip to a new controlled rate of 11,800 to the dollar, a 5 percent devaluation. The bank allows the dong to trade within a 10 percent band around the target rate, and the currency fell to its floor of 12,980, an all-time low.
Okay, for starters, when we ovulate the egg will live in our body for about 48 hours.(2 days) If during this time an egg is not fertilized, then it will breakdown and die off... Sperm can live in a woman for about 3-5 days, although some conservatives reports say up to one week. Lets say you have a PERFECT 28 day cycle, and you ovulate on day 14..If you had sex on day 11, the sperm could stay alive long enough to fertililze the egg.
Whereas sex slightly before ovulation male sperm will die off leaving only the female sperm around to fertilize the egg by the time it is ovulated. Once again, this technique isn't very effective. How long can sperm live in the female reproductive tract? Sperm are seldom able to fertilize an egg after 48 hours of storage in a woman. Sperm can be detected 5 days after sex, but there are generally not enough of them or they don't swim very well, so their ability to fertilize an egg is lost. It's still possible, because you only need one cell to fertilize an egg.