I missed my periods and tested positive in 32nd day post lmp with home urine test..The test line was too clear and dark..Today morning I spotted 2 drops of blood so we checked again but the test line was too faint..We rushed to the hospital and get beta hcg done..The result came very low (only 67).Dr advised to wait for a week for next checkup but also told there also chances for bleeding.. My question is the line was dark on 32nd day why the hcg level decreases..What it indicates?