Pregnancy calculator is a device used to calculate the approximate conception date and the due date of pregnant women. For this, you have to enter the information about the number of days in your menstrual cycle, and first day of the last period into the calculator.

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The common cause of low back pain is the stress on the spine. Spinal cord contains the nerves that carry messages between your brain and body, through the neck and back. If the spine becomes over-strained or compressed, the nerve roots also become irritated causing back pain.

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