thanks for using health care magic.
The fact that the gestational sac
is increasing in size is a good thing
and it is re-assuring. Concerning the heart beat, it is difficult to conclude
at a gestational age
of 7weeks thus it will be advisable to to repeat the
in a week or two which will give a better appraisal.
is for the spotting and it helps to prevent deficiencies
in progesterone during early pregnancy
which can cause miscarriages.
You need strict bed rest for now and continue your progesterone and in
case the bleeding aggravates, you will need to meet your doctor
Wish you all the best.