INCEST- It is so destructive.
In many families where there is incest present, the victim is "taught" from a very early age to be pliable, malleable, accept the unacceptable and bear the unbearable for the delight and sexual satisfaction of another.
Many of us find ourselves crippled, hobbled, doubting our ability to work, fend for ourselves, live on our own, seek any safety away from the family that has sacrificed our life for the abusers desire.
It is well documented that memories of incest are actively repressed, sometimes for more than forty years.
It is a fact that abusers use EVERY tool at their disposal to deny the truth of incest.
--Given all that information lets investigate your own reality.
You suspect your father has sexually abused you and that you can't remember it. --We don't need to argue, smoke = fire, Of course there are unsubstantiated accusations, but your suspicion and indecision do not make him innocent, rather they confirm that he is guilty.
People have suggested you get away from your living situation.
People who are in active incest families are still crippled by the corrupt family system. Removal of a victim from an incest situation may be similar to closing the barn door after the cow got out, there may not be active sex involved in the current relationship. However, the dynamics of power dependency upon the abuser are difficult to overcome for the victim.
How easy it is to continue to live there with them. To accept that what they want for your life is ok. As long as you stay there you are not providing for yourself, not holding yourself accountable for the risky sex and filling your days with attempts to blunt the pain.
If you get out on your own you will have to be busy with your own life. You will be providing for yourself, not beholden to your abuser anymore, not available to him anymore. As you work and live you will grow. Safety helps memory.
On your own you will heal from incest. It will be a lifelong pursuit.
Good Luck, I am here for you....Geoff