I am 42 yrs old and 11 1/2 weeks pregnant. 2 sonograms (6 weeks and 8 1/2 weeks) showed fetus implanted well in utero and strong heart beat, HCG 31760 12/21/10. This morning woke with bleeding. Red blood, no bleeding since 630 this morning, no cramping. Doc told me to "watch and wait". Is this normal. Please help