At 20 weeks an ultrasound will be done. This is most commonly known as the scan at which you can find out the sex of your baby but it is more importantly an anomoly scan.
The anomaly scan will usually take place around the 20 week point and looks to check that baby is developing and growing properly with no problems. The scan will check;
 

That baby’s head is the correct size and their are no problems with baby’s brain
That the spine is aligned and covered with skin
That there are 2 kidneys and …

Week 17
The cartilage which is found throughout baby’s body is now starting to harden into bone. Baby can measure up to 4.8 inches and weighs almost 3 1/2 ounces. You may have increased vaginal discharge and may start to suffer from indigestion as your uterus puches your insides upwards and your oesophageal muscles and sphincter begin to relax.
Week 18
You are 5 months pregnant and baby is 6 inches long. Your baby can hear your heartbeat. You may see the return of poor sleep and should try to sleep on your …

Your Symphasis Pubis is a stiff joint supported by many stiff ligaments which connects the two halves of your pubic bone at the front.
Symphasis Pubis Dysfunction is pelvic joint pain suffered during pregnancy due to the added pressure on your pelvic joints and the relaxing of your ligaments caused by to the release of a hormone in pregnancy called  relaxin which softens your joints in preparation for childbirth.
SPD usually begins in the second or third trimester of pregnancy and will usually continue until the birth. For more severe SPD you …