After 6 days missing period, took a beta hcg test. It showed 149. Consulted doctor. Then again doctor asked to check after 2 days. Again checked. Result was 243. Doctor told it was satisfactory. But light bleeding and pain came in between days. So after another 6 days took another beta hcg test. Now the value was 64. But that test was done on different lab. So decrease in hcg confirms miscarriage or not? Pls advise.