I MISSED MY MENSIS THE MONTH OF JULY. I WANT

I MISSED MY MENSIS THE MONTH OF JULY. I WANT TO A PHARMACIST HE INJECTED ME WITH MENTROGEN INJECTION ON THE 8th OF AUGUST AND ON THE 9th OF AUGUST MU MENSES CAME OUT . GIVE ME ANOTHER 2 OF THE INJECTION TO USE BUT I DIDNT USE THEM IMMEDIATELY BECAUSE OF THE LOWER ABDOMINAL PAINS I WAS HAVING. I USE THE REMAININGON THE AFTER 4 AND 8 DAYS INTERVAL 13th AND 17th OF AUGUST.
MY QUESTION IS AM NOT SUPOSE TO SEE MY MENSES AFTER 28 DAYS STARTING FROM THAT 9th OF AUGUST? PLEASE I NEED YOUR ANSWER BECAUSE TILL NOW MY MENSES IS NOT OUT