infoplease has also created this page which summarizes Presidential and Vice Presidential Salaries from 1789 to the present. President George Washington, for example, was offered a salary of $25,000/year. http://www.infoplease.com/ipa/A0875856.html.
Pregnant mothers experience abdominal cramping as a normal sign during the first trimester of pregnancy but this can be otherwise a signal of an underlying problem. If cramps become intense and accompanied by severe bleeding and pain, or if one thinks she is not pregnant, consult a doctor immediately.
I've had a lot of BH, and also have started having pre-term contractions a couple times a day (so, real ones, I guess?). During BH, my stomach gets super tight and very hard - like rock hard! It doesn't feel like a period cramp and my back doesn't hurt - OB says BH shouldn't hurt. They might be uncomfortable and annoying, but should not be painful. The pre-term labor things do hurt. They feel like a period cramp and my back hurts.