Good day everyone! This is my first pregnancy, 6 weeks along. Since ye…

Good day everyone! This is my first pregnancy, 6 weeks along. Since yesterday morning I've had strong pain on both sides of my belly and around my pubic area, I thought it was intestinal pain because problems with my intestines can happen... Today there wasn't any sharp pain, but a pulling sensation in my lower belly. I read that at early stages of pregnancy, pain similar to period cramps is normal because the uterus gradually increases in size... In the evening I noticed that the discharge changed from light-white to pale brown... What could this be?