I hope someone can give me some encouragement? I just did my 1st round of ivf. I did 3 Hcg booster shots three days apart after implantation. HPT and BPT shows positive today. I go back in two days for 2nd BPT. It has only been 7 days since my last Hcg booster (I think 2,500) and I have been reading everywhere that it takes 10 days to leave my system. The nurse that called me to confirm my positive test even seemed surprised when I said that the last booster shot was 7 days ago. So now I don't know if I should celebrate or worry. Did my Dr schedule me back too soon? I'm hoping that the booster shot, being a smaller dose, leaves the body quicker. I should have asked more questions. My beta # was 182. Does anyone have any experience with the booster shots?