you will be fine. i have a really good friend that has two kids by a scumbag of a man. he left her for another woman when her youngest was just a few months old. she has one boy and one girl and though she has days where she questions her efforts herself, her kids are wonderful little people. she is doing an outstanding job as both mother and father. for you to care in the first place about being a single mom says alot for your character. you are going to be an amazing mother and your child will blossom no doubt. congratulations momma!

your doing the right thing and considering your situation, you feelings are normal. trust me this experience will make you a stronger person.
i was with my son's father in the beginning but he didn't want to "play house". so i basically had to do everything while we were together, until it stressed me so much i left him.
for your comment about "son's need their fathers" this is very true, but some women are forced to raise their children alone.
consider this
my mom had four kids 3girls 1boy she stayed with my dad for 20 years, in that time he broke her arms, legs, fractured bones, beat her till she bleed, black her eyes, and other things. he also did the same things to my siblings and i.
so my response to you about son's need their dad. my mom was better off, b/c we developed emotional issues& it effected the relationships we got into & even how we parent our children. my brother is mentally abusive to his daughter & she's is now doing what i did when i was a teenager, she is sleeping with a lot of guys to mask the pain.

so create a good loving home for your child. an alcoholic can turn to an abusive man if he's under a lot of stress.