What should I do

So I found out I was 7 weeks pregnant but idk I feel this is more of an unwanted pregnancy. I don’t feel the father is mentally stable enough to be a dad and well he always just stress me out during the pregnancy and find it funny. It just makes me not want this kid even more . All the pain the cheating he done to me effecting me and how I feel about it. I was thinking to end life or adoption. It’s so hard to decide