6-7 weeks pregnant?

My last period began on 1/21 and nothing since. Today when I wiped noticed pink, and freaked went to the doc hes dis blood work and go again mon should know by tue if my levels are going up or not. Scared to death and have no idea how to wait til tue. Very mild cramping, major headache. not consistant pink when I wipe. Never darker. this is my 2nd pregnancy, nothing like my first. My are so sore and im exhausted, very nauses today. Im scared to think Im miscarring!