Thanks for your question.
Probably it is a case of ante partum haemorage and the cause may be threatened abortion
, placenta praevia
or abruptio placente so you should do a urgent ultrasonography
of lower abdomen to detect the cause as well as check the viability of the foetus.You have to do some routine blood investigation to check for others minor causes of bleeding and also your hemodynamic status.
So please take another opinion from a separate ob/gyn specialist.