Can't remember the name of this lifetime movie!?

It's about a man who drugs his wife and those drugs are slowly erasing her memory. She started having flashbacks of the past and she would see herself pregnant and other things. And i think in the beginning the husband had saved her from a fire and she tought the medicine he was giving her was b/c of the injuries she had due to the fire accident. They did not show the fire accident, but just told about it half way through the movie. She goes to the doctor one day for some reason and he does a drug test on her and he realizes she's on drugs and when asked if she does drugs she said no. and the doctor and the wife kept all this from the husband.