yeah don't worry, with my first I never got morning sickness and I felt like I was getting my period in the early weeks. My stomach hurt. But she was fine. Like she said, as long as you arn't bleeding badly and on the floor in pain you should be just fine!!
Most stomach pain is normal. Its your body's way of preparing for the baby. Your Uterus is expanding and stretching which is what you are feeling. The only time to be alarmed is if its extreme pain (doubling you over) and you are spotting or bleeding. At that time you would want to contact your doctor/midwife! Hope that helps!
Keep us posted if anything changes!