Implantation or medicine?

queen

Hey ladies, for the past one year my cycles have been 37-40 days. My lmp is 28dec21 and out of curiosity i started doing my upt from 26 th and ofcourse it came out bfn except when I started spotting on 29th which almost never happen this early , so i tested again and got faint positive. Got bhcg done yesterday and found out 7.5 consulted obgyn and she asked me to take ecospirin,duphaston and susten(progesterone)suppository. Now my bleeding has stopped and i am so confused is it because of medicine ? I have mild cramps and backache just like in periods.

Plz give some positive responses and success stories