1st ultrasound @9wk3dy. Doc couldn't find heartbeat. No cramp or bleeding, but brown discharge. Baby measure 9wks. Is it early to detect heart or wait it?

Depends on technique. Transabdominal scans (see pic) with a low frequency probe and an heavy pt. with a tilted back uterus might not show a heartbeat (HB) at 9 wks, esp. if dates are a little off (irregular periods). BUT, a resonable trans vaginal U/S (probe in the vagina) would be expected to show a HB at 9+ wks. Maybe this will be done along & blood tests. For support see: http://www.miscarriageassociation.org.uk/