Pp depression

Ladies is it normal im scared of labor but im MORE scared of developing PP depression? I have had issues in the past with depression , i have a great boyfriend but im even having prenatal depression and just really nervous ill get pp and not give my baby the love she needs or i will change for the worst that i will run my support away. It makes me want to cry i dont know how to keep myself from developing it because I know it will be dangerous to my mental . FTM.