soo, according to my last period, im 6 weeks 2 days.. ive been having brown spotting off and on for a week... not much at all. doc did my beta. he said it did rise but didnt double like it should.. he expected it to be around 1500-2000, instead it was 156,000.... any thoughts. i have ultrasound on thurs. he said im either further along, something is wrong with pregnancy or.........twins... what do u ladies think? thanks