Blood work came back < 3 mIU/L…

I took a clear blue digital test on Monday evening and was thrilled when it read Positive! Took more a couple hours later & they all came back negative. I took a couple more the next day that came back negative as well & had some faint positives (Blue Dye Tests though…)

I got my blood work done and my HCG levels were < 3 mIU/L (negative for pregnancy). the doctor asked me to come back in a week so we could retest.

The first day of my last period was July 3rd. My husband and I had unprotected sex on August 11th. I have been spotting VERY lightly and have had some cramping this week.

Am I going crazy?! I want to believe it may just be too early to tell for sure if I am pregnant. But I don’t know. Please share your opinion.