Thanks for query,
Your treatment is on right tract,continue treatment under gynaec advice.
As you did not get period and few drops only may be due to break through bleeding.
Test for pregnancy
was too early to perform.
Injection you were given to stimulate proliferation,growth and development of folicle and endometreum.
Go for ultra sound
to confirm position of folicle and endometrium.
You may be pregnant also.
Rule out COPD
Ok and bye.