thanks girls for your replies,

well i decided to go back to doc, to put my mind at ease, and saw a different doctor, he picked it up straight away, and if he couldnt said he would send me for an U/S, since i previously had M/C, He also told me the same thing its hard to detect an H/B on doppler before 16 weeks, well that put my mind at ease, the first doc was such a ***** getting me all worried and not explaining anything, and telling me its not looking good...........what a jerk. I wont be seeing him again!

again thanks so much girls

chrissy