Apart from your growing bump, pregnancy does very strange things to your body. You might notice your hair becomes more fullsome (and then proceeds to drop out more quickly soon after the birth!), you get a snuffly nose about half way through your term, and you may well get tingling in your fingers and toes, or a pins and needles sensation.
Doctors do not believe this is a sign of anything worrying (unless you get regular dizziness or other unexplained symptoms too), but do recognise it happens to quite a few women. It is not a sign that your circulation has been cut off, so don't worry that your baby has been harmed in any way by it.
As there is no specific found cause for the sensation, there is also no specific cure. However, it can help if you get up and move around or change position if you are laying or sitting.
There is a more bothersome problem called restless legs syndrome which can affect women in pregnancy. For more on that, click on the article below.