I have a miscarriage 8 weeks ago and have not had a period and am feeling pregnancy symtoms. My boyfriend and I had sex on march 29th for the first time since before the miscarriage and I tested faintly positive (urine sample) this passed week. I had a blood test to see if i was pregnant but it was negative. Some people have told me it may just be to early to detect the hcg in my blood because it's only been a little only two weeks since I had sex.