I am 44,have 2 children, for the last 3 weeks I have been gaining weight and my breasts have been sore on the lateral sides. I had taken 2 preg tests last week that came up neg. So I decided to do the hcg diet to lose the weight that I had gained. I did lose 8 lbs in a week. Yesterday, when I had sex with my husband, I started to bleed. enough to stain the sheet, about 6 inches in diameter. and today I am having small amount of cramps. Also, I did have a period 2 weeks ago, which only lasted 4 days. I want to know if I took another unine based test would it come out positive because of the hcg in my system? Also, would it be positive for bloodtest?