25 Weeks

The baby now weighs nearly 1.5 pounds/ 660 grams and is approximately 13.5 inches/ 35 centimeters long from crown to heel. He makes breathing movements but has no air in his lungs yet. At 26 weeks, fetal brain scans show response to touch. If you shine a light on your abdomen, your baby will turn his head, which according to researchers, means his optic nerve is working.

At every prenatal visit, your doctor will take your blood pressure and do tests on a sample of your urine. In this way, pregnancy-related conditions such as pre-eclampsia and diabetes can be detected and treated.

Your fingers, wrists and hands may be feeling achy and numb. The carpal tunnel in the wrist is swollen, as are many other tissues in your body. Nerves that run through the tunnel end up pinched, creating pressure that manifests itself as shooting or burning pain. Wearing a brace may help; so will taking vitamin B6. Talk to your doctor about other ways to cope. Find out about natural remedies for numb or achy fingers.

Source: http://www.babycenter.com.ph/pregnancy/fetaldevelopment/25weeks/