Living large I googled some odds.
t's difficult to say exactly how long it will take any one individual or couple to get pregnant. Factors such as your age, general and reproductive health, and when you have intercourse all impact your chances of conceiving a child.
However, these general statistics may give you an idea of how long it will take. Normally fertile couples have a 25 percent chance of getting pregnant each cycle, and a cumulative pregnancy rate of 75 to 85 percent over the course of one year. Still, some healthy couples can take even longer to get pregnant. more inof
So 25% each cycle, but yeah more over a year. So for a one time fling I wasn't far off.
That is the odds for a woman in her 20s BTW, they go down as mom ages.
II could not find stats on skin cancer..but skin cancer is a bit more complicated.