Help :'( I'm so scared

Tiffany • 36 yr old Mom of 2
I'm 5weeks 4days pregnant and I just encountered some bleeding! It was pinkish brown - noticed when wiping. Can this be normal? Anyone else experience bleeding? I had some very mild cramping this morning also, however, I thought it was related to my constipation. Now I'm freaking out... I called the Dr and am waiting for their callback :'(