last week i went to the dr. because i took a hpt and wanted to confirm that i was actually pregnant. well the blood test came back positive (dont know what my hcg levels were) but a few days later i started to get lower back pain, and started to spot. when i went to the er they told me that i may be miscarrying, so they did an ultrasound and in that ultrsound i saw nothing! i mean absolutely nothing! the dr. told me that my hcg levels had doubled from monday to wednesday but that i may still be having a miscarriage. i have been bleeding (more like a light period0 for about 5 days now. i took another blood test but wont know the results until tomorrow. do you guys think i could still be pregnant or that i already lost the baby? i dont know how far along i am because my period is irregular but from my last period i should be around 7 weeks