Hallow Dear, Depot Progesterone is a Progesterone preparation. After its withdrawal, the chances of pregnancy after unprotected intercourse do exist. It also leads to very light bleeding to no bleeding sometimes. However, at the time of immediate menses after the withdrawal of Depot you had slight bleeding. This low bleeding could be due to Progesterone effect. Since all your four tests are negative for pregnancy, you are not pregnant. It is not that every time premenstrual symptoms are present in every woman. So you need not rely on premenstrual symptoms. Probably you will get menses of some greater quantity by February end. If the bleeding continues to be low, you may require some oestrogen support for few months. Please report to your Gynaecologist in that case. I hope this helps you. Dr. Nishikant Shrotri