Can I trade in my family for a different model?

Okay, so in my thinking and planning stages of wanting a baby, I completely bypassed talking to any family.  (I did discuss with some friends to get their input)  I'm not really close to any of my bio family and well....  I guess the nicest way to put it is most of them are a little on the judgemental side. 
I realized that I couldn't think of a single person in my family that would look at my child and just see *my child* and not the color of their skin.  Which really sucks and makes me feel like a bad person and wish I could trade my family in for a different one.  Fortunately, I really only see family a few times a year, mostly around holidays.

I really don't think most of the family would be happy with my choice to become a single mother.  Part of it is because of religious beliefs and part of it is because despite their judgemental ways, many of them are hypocrites.  I can only name one female in my entire mother's side of the family that got married before her first child was conceived and only a couple of the men. 

One of my mother's siblings actually called CPS on her because she is a lesbian (granted this was over twenty-five years ago and while public attitudes aren't quite as intolerant as then, the families attitudes are still the same.) which slightly scares me.  I'm not a lesbian but I have been very unlucky in finding Mr. Right and wonder if the family thinks I'm 'single' because I have a gf hiding at home.  Would one of my family decide they don't think I'm mother material for whatever reason and call cps on me?  How would I even handle that?

Anyway, I decided to first broach the subject with my bio mother who lives out of state.  I figured she would be the easiest to get on my side.  To sum up an hour long convo:  She'll love her grandchild no matter what but she thinks being a single mother is incredibly difficult but that it is my choice.  (Although, 55 mins of that call was her going over every single negative she could think of... fortunately for me and my anxieties, they were things I've already thought about.)

So, my mother will be just happy to get a grandchild but I think that has alot to do with her failing health.  I won't go into it but I really don't believe she'll live to see 2015. 

I think I've pretty much decided not to mention anything to the rest of the family until after pregnancy is confirmed (*fingers crossed that it does happen*).  I'm not sure I will even let them know I used a sperm donor.  I may let them just think I was stupid and had a one night stand.

What have others done with their family?  Have they been honest or have they like me thought it was better all around to give them a sanitized version of reality to keep the peace? 

Marielle