Your pregnancy at 19 weeks
What's happening with mum
You may experience some lightheadedness around this time in your pregnancy. This can be due to your growing uterus puting pressure on blood vessels or because your heart is pumping more blood than usual. This speeds up your heart rate and slows down your circulation resulting in less oxygen getting to the brain.
Symptoms may be worse when you get up too quickly from a sitting or lying position.
If this becomes extreme however you should ask your doctor to check your blood pressure and blood sugar levels.
What's happening with baby
Weighing in at just over a pound with a length from head to rump of around 6 inches your baby is putting on weight and growing rapidly.
He is also developing a new look as his skin is coated in a layer of fine hair called lanugo and oil secreted from his glands. This cheese-like mix is called Vernix caseosa or vernix and is eesential for stopping baby's skin wrinkling as it soaks for 9 months in an amniotic fluid bath. This coating is usually shed before birth but is still visible on some newborns.
If you are 19 pregnant your due date is from Wednesday, 8 August 2018 through Tuesday, 14 August 2018.
From larasen In Pregnancy