Mom was from the "I don't wanna know school".  I got on the pill my freshman year and confessed to her when I came home for the summer.  She took it so so:
"I don't like it, but I can't do sh*t about it.  I'd rather have ya on the pill than preggo"
She still thinks my college sweetheart was my first.  
Yes I am married but I do NOT talk to her about my sex life.
My sperm donor doesn't know much.  He knows that I had a serious boyfriend in college.  We haven't spoken in 3 years (and I plan on keeping it that way).