dj - *sayang* don't give up. dun bang head until Sat BT, ok? as melodi said very frus but technically it's a positive. Maybe that's why the girls at KK only test on day17 to avoid this roller coaster of waiting for 2nd BT.
found this - hope it can give you some encouragement to get through till Sat...
from conception from LMP (mIU/ML or IU/L)
7 days 3 weeks 0 to 5
14 days 28 days 3 to 426
21 days 35 days 18 to 7,340
28 days 42 days 1080 to 56,500
35 - 42 days 49 - 56 days 7,650 to 229,000
43 - 64 days 57 - 78 days 25,700 to 288,000
57 - 78 days 79 - 100 days 13,300 to 253,000
17 - 24 weeks 2nd trimester 4060 to 65,400
25 wks to term 3rd trimester 3640 to 117,000
After several days postpartum nonpregnant levels (<5)"