bebehvala, they think I'm having implantation failures, everything else checks out fine. the ob who fixed me from my first 2 mcs was great and he thinks the same. will be living on aspirin, progesterone and something else(I forget) when the time is right. my bt for day 31 was only 11 and 3 days later was 5 so that's what makes them think it is early failure. Lets hope so and hope they can fix it!!