I had some spotting around 7 weeks and cramping too. It was very small spots just on the tissue. I was so scared. I am now 29 weeks. Hang in there, scant bleeding in the beginning can be normal. I nearly drove myself crazy with worry. Congrats.
This can be normal. Is the blood bright red? If so it can be the start if a miscarriage thats how I started. I had a miscarriage a month ago. Make sure u rest abd if bleeding gets worse contact ur doctor.
I wouldn't worry, just rest and if you have heavy bleeding and cramps go to the er.