Sad experience with fertility drugs.

In my entire life I had never had irregularity in period. I have 1 kid and had 1 abortion. After abortion, I lost my patience and started taking hormonal pills/ fertility drugs just after trying naturally for 4 months. And now after completing 3 months of treatment, I am in a stage where my period is disturbed. I am so used progesterone medicine that without taking this my body is not producing progesterone naturally & get abnormal bleeding/spotting and some time period is getting delayed. This is happened for last 1 month after stopping treatment only. What should I do? If I ask here will get generic comment like further investigation is required to find out the issue. But my gets deteriorated after taking hormonal pills for 3 months. Shall I stop everything & gets my body give time to recover from the effects of medication? Or shall I continue taking medication? I know everyone doesn't face issue after treatment, but everyone body is not same. Please advice. I am helpless.