anyone?!

Stephanie
My period is a week late... my son will be 3 months on Friday I don't know if it's possible to still have hcg in my body. I took a digital first response test and got a yes+, so being scared but excited I took a blood test today and got a negative The dr said that I should check again in a few days and next week with an at home tests... has anyone had this happen?!? I feel pregnant but I can't imagine the drs blood test being wrong. Has anyone had this occur and turn out to be pregnant?