Cramping. Is this normal or should I be worried?

Calyssa
Sunday was one of the best days of my life. My husband and I discovered I was pregnant which shocked us because I had started cramping on Thursday which normally means I'm about to start. I have been cramping every day since. Most have been light cramps but today I've been bending over in pain. I know some cramping is normal but should I be worried? I'm only 3 weeks along. Any words of advise is appreciated.