Emergency contraceptive pills are very safe to use. Side effects, if they occur at all, are usually short-term and mild. Nausea has been reported in about 18%, or 18 out of 100 women using levonorgestrel emergency contraception. Vomiting may also occur in about 4% of women.
Gambling is a good example of speculative risk. Gambling involves deliberate creation of risk in the expectation of making a gain. There is also the possibility of sustaining a loss. A person betting $500 on the outcome of the next weekend English Premier League Match faces both the possibility of loss and of gain and of no loss, no gain.
The third source of risk is industry-specific risk  those factors that impact the earnings and cashflows of a specific industry. There are three sources of industry-specific risk. The first is technology risk, which reflects the effects of technologies that change or evolve in ways different from those expected when a project was originally analyzed. The second source is legal risk, which reflects the effect of changing laws and regulations.