Dear user, welcome to healthcare magic.
You should repeat the ultrasound
scan once more may be there are new findings.
the abdominal cramps may be related to the uterus
or anything else.
As for the spotting, this should be carefully evaluated. the doctor may have to take an endometrial sample to know the cause of bleeding.
I am interested to know the result of your doctor visit to follow up the next step with you.
Dr. Ahmed Bahaa.