Clinical pathology supports the diagnosis of disease using laboratory testing of blood and other bodily fluids, tissues, and microscopic evaluation of individual cells.
Make it better: To help avoid aches in this face-up position, place a pillow or rolled-up towel under your knees. It supports the natural curve of your spine and can lower your chances of back pain. If you're snoring or have sleep apnea, it's best to sleep on your side.
After 16 weeks it's best not to sleep on your back, and you probably won't sleep on your stomach. (One way to avoid sleeping on your back is to sew a tennis ball into the back of your pajamas; this works for people who snore, too).