Hello and welcome to HCM.
Thank you for your query.
First of all, I am hoping you have made a mistake while mentioning your serum
hCG levels, as with this level, it is impossible to support a
pregnancy, and can easily result in a
miscarriage or even a
spontaneous abortion (which could relate to the blood clot that you saw).
Of course I cannot confirm this, without seeing the clot or without information on the hCG levels. Your doctor seems to have prescribed quite a few antibiotics, for what reason? You have failed to mention. But, it could be in anticipation of a miscarriage or abortion (if your hCG levels are indeed correctly mentioned above). I am sorry to say, but if your hCG levels are accurately mentioned above, this could have resulted in termination of your pregnancy.
I hope I have succeeded in providing the information you were looking for. Please feel free to write back to me for any further clarifications at: http://doctor.healthcaremagic.com/doctors/dr-shoaib-khan/64581 . I would gladly help you.
Best wishes.