Mam: Pregnant 22 weeks (Baby 20 weeks)
Leg and foot cramps, swelling of ankles and feet, will likely occur—more reasons to put your feet up and read or watch your favourite programme!
Hopefully, you’re feeling pretty good now, and at your midpoint your belly isn’t in the way (it will be later!). Leg and foot cramps, swelling of ankles and feet, will likely occur—more reasons to put your feet up and read or watch your favourite programme!  Around 22 weeks, you will need an ultrasound to verify your due date, and check progress on baby’s development.
You may start to notice stretch marks on your abdomen as it expands to accommodate your growing baby. At least half of pregnant women develop stretch marks by the time they give birth. These small streaks of differently textured skin can range from pink to dark brown (depending on your skin color). Although they most commonly appear on your tummy, stretch marks may also show up on your buttocks, thighs, hips, and breasts. There's no proof that lotion helps prevent stretch marks, but keeping your skin moisturized may help with any itching and may help the severity of the stretch marks. 
WebMD discusses week 21 - 25 in pregnancyfind out more
Babycentre discusses week 22 in pregnancyfind out more
Langmans Medical Embryology, Ninth Edition, TW Sadler, 2003find out more