@Billie2 - Oh hun I am so upset on your behalf how can things be so unclear for you like this you have been left in limbo yet again. You have every right to feel upset, angry and lost.
If a sac was seen last Saturday was there any comment on its shape was it well formed at that stage. I know when I had my blighted ovum last year Warren finally located a sac in my uterus which was well formed in shape but had no fetal pole or heartbeat. He diagnosed a BO and sent me for a scan locally over Christmas whilst he was away. It was then that the sac was irregular in shape and it was presumed it had started to break away.
The increased vascular flow is of some concern hun especially with your history you need answers especially with your concerns of hemorrhage even if it's just for your your reasurrance. Your fs sounds useless.
Hope your BT gives you some answers tomorrow.
Thinking of you tonight hun unfortunately no words can make this better xx