Unsure if I want stay pregnant

Ok so don't hate me please..
Ian pregnant at 6 weeks and I don't know If I want to be a mom...I never really wanted to have children only because I feel im incapable of the responsibility.i don't have a lot of family support either and nor can I stop working..
I had a lot of pressure from home because parents want to be grandparents..but since they live in another country,I can't expect them to be able to help..my husband works crazy hits and I'm pretty much on my own..I am so morally confused.i don't know if it's ok to let go now:(..I don't want to bring a child to this world and not being able to care about it..
What should I do?