So what are you going to do? You are an adult who is not working and not studying,single and pregnant and living with your father who is financially controlling you so he is OK!
You are responsible for you and now a baby, so what is the plan, stay with daddy, do as you are told and try to hide a pregnancy and live off benefits and child support?
You are not responsible for your dad or providing him with a benefit lifestyle........ and now you are pregnant you need to tell him and sooner rather than later, you need to either go back to college and DO something that can earn you money, be it a short beauty therapy course or something like book keeping, at least you will then have the means to earn money from home being self employed doing nails/facials or book keeping for small businesses and many colleges have creches so you can carry on studying so you get more than a basic education even when the baby is born... your responsibility is ONLY to yourself.
In so far as the bf from when the kid is born needs to pay child support and if your controllig dad tells you to leave you will also need to find somewhere to rent........ getting pregnant just made your life 1000 times harder