Sometimes, things happen while a couple are engaged in sex, which can surprise even the most sexually confident person. Dr. Mary Jane Minkin, an ObGyn with Yale University and spokesperson for FirstResponse said that it is common for women to become dry or irritated during sex.

According to Women's Health, roughly 33 percent of young women have experience vaginal dryness, the Huffington Post reported. Seconds or minutes after sex begins, women just somehow know how the intercourse is going to play out for them, good, bad or otherwise.

Kimberly Resnick Anderson, director of the Summa Center for Sexual Health in Ohio, said that when it comes to sex, women often start in a state of "sexual neutrality.

Sometimes, a woman needs to pee while they are in certain sexual positions, like doggie-style. Amy Levine, a sex coach and founder of Ignite Your Pleasure, said that those sensations erupt from G-spot stimulation, which can lead to female ejaculation.

There is often a performance aspect to screaming during sex. A small 2011 study found that 66 percent women moan during sex to speed up their partner's climax, while 87 percent did so to boost their partners' self-esteem, CNN reports.

Women fart during intercourse is not actually the same thing as passing gas - it's just air being released through the vagina -- but it does make a very similar sound. This occurs when air gets trapped in the vagina.

Women get a headache while they are having intercourse with their partner. The headache is usually a dull ache in your head or neck, which builds as sexual excitement mounts, or it can be a more sudden pain, often accompanying orgasm.