yeah i duno what the big deal with it being a different race than you has anything to do w/ it. apperently you KNEW it would be mulatto when you we're having sex with a different race man!
It's better to summon up the courage to tell your mother than keep it from her until she finds out. It's best that way and you shouldn't fear her reaction.
I agree with Mrs. Wright. If you don't want to/can't keep the baby then consider giving it up for adoption. There are so many couples who can't have their own children who would love to have a chance to become parents.
the worst that'll happen is your mom will pass out ... have her take a seat first ^_^ and could race be a possible issue for your mother? either way, it's your choice. be brave. this will only make you stronger.