Unsure of pregnancy

I’m now 5 weeks pregnant and I find myself unsure if I want to keep my baby because of the relationship I have with the dad sometimes we’re good and them other times we’re bad. The things he has done in the pass plays a big part in why I feel the way I do . One part of me is telling me I should just get rid of this baby and get rid of him and the next part of me is wants the baby ... I don’t know what’s the right thing to do anymore I just feel waves of uncertainty about everything .