Hello dear,
I understand your concern.
In my opinion there are various causes for
bleeding during pregnancy like :-
1)Thyroid abnormalities .
2)
Progesterone insufficiency.
3)Abnormal pregnancy like
miscarriage or ectopic pregnancy.
4)Bleeding from cervix.
etc.
So all the above causes should be ruled out by physical examination and necessary investigations.
Ultrasound helps to know the well being of fetus.As ultrasound is normal you need not worry.
Thyroid profile helps to rule out any thyroid abnormalities.
As per your information the bleeding is from outside the uterus which might indicate the bleeding from cervix.
Don't worry in some cases even though with the presence of bleeding everything will be normal and pregnancy continues till term and have good outcome.
Relax.Avoid physical stress and intercourse.
Take
folic acid and progesterone supplements.
Take iron rich diet and
iron supplements to combat anaemia caused due to blood loss.
Hope this helps .
Best regards...Dr.Srilatha