Hindi ko ma-recall exactly kung gaano katagal ang progesterone sa first pregnancy ko, but a few of us tried it and usually it's prescribed based sa individual situation, kung may spotting, threatened miscarriage, or low levels talaga, kaya maybe your OB adjusted your needs na lang since okay naman ang pregnancy mo so far (no cramps, no bleeding, good sign!). Best talaga to clarify with your doctor on March 25 kung bakit tinanggal na, or pwede mo ring tawagan ang clinic bago umabang para peace of mind mo, especially first time mommy ka pa lang at maraming tanong naturally!