There are no known Cirque de sole sexual positions that have been medically proven to help get you pregnant but there is a healthy intuition that certain positions improve the fertility footprint in helping the egg and sperm meet up in the fallopian tube. Since the cervix is the gateway into the uterus and fallopian tube it would make sense to have the sperm as close as possible to the cervix to help it swim up towards the eggs. So, positions with deeper penetration-including Doggie style (sex from behind), Missionary, and Cowgirl from behind support getting the sperm as close to the cervix as possible.
Do not stand or sit up after having sex. Lie flat on your back and tilt your pelvis upwards (pillow under your hips) for 20 to 30 minutes allows the sperm time to swim up into the fallopian tubes where fertilization takes place. During this time, you can also have an orgasm which will also help propel sperm in the right direction. (see below)
Peeing after sex may help prevent a UTI but it does not have any effect on conceiving. Do not get up to pee until you have been lying down for 20-30 minutes after having sex to allow the sperm to swim up into the fallopian tubes where conception occurs.
Being in the shower should not affect the chances of conceiving.
Being in a hot tube, jacuzzi or sauna may negatively affect the sperm’s quality and quantity due to the high temperature which can affect conception, so these activities are never recommended.
Orgasms have many health benefits including increasing your chance of get pregnant. Even though it’s a bit controversial, the “upsuck hypothesis” is believed to help propel the sperm up into the fallopian tubes where fertilization takes place. When a woman orgasms, strong muscular contractions help propel sperm, through the cervix and uterus, placing them in the fallopian tube where fertilization occurs. The relaxation effect of an orgasm also helps in the baby-making process. Even though an orgasm isn’t a prerequisite to getting pregnant, it does seem to help increase the likelihood of conception. It is clearly a win-win!