BLIGHTED OVUMS

Patient: HI, ON MONDAY 12.12.2011 IT WAS CONFIRMED THAT IM PREGNANT FOR THE 3RD TIME. ONLY PROBLEM IS THE PREVIOUS 2 PREGNANCIES ENDED IN BLIGHTED OVUMS. WHAT IS THE CHANCE THAT THE 3RD PREGNANCY WILL ALSO BE A BLIGHTED OVUM, AND IF IT IS, CAN ANY FURTHER TESTS BE DONE TO DETERMENE THE CAUSE. I ALSO HAD A SONAR DONE, AND ACCORDING TO THE SONAR IM 5W AND 3 DAYS, BUT I SOW NO FETUS, JUST A BLACK CIRCLE, WITH NOTHING IN IT, NOT EVEN A DOT. IS THIS NORMAL OR SHOULD I WORRY. THANK YOU

Doctor: