Rejected and Regretted

Aiden's Prov. I became a omega when I was 7 yrs old after a attack that my mom died in. She died saving me and my dad thinks its my fault.  I have a older brother who beats me and a younger sister is the only one who shows me any kind of love.  She is 8 yrs old and we made a pact, if I was to ever leave, then I should take her with me.  Flashback My mom just gave birth to my young sister about a month ago. I was helping my mom get her ready for bed. All the sudden we hear the attack alarm.  My mom yelled at me to get Alec( my sister) and go hide.  I after about 5 mins I hear a rogue threaten my mother so I run out after making sure my sister is good. 7 yr old me: GET AWAY FROM MY MOTHER!!!! All I get in return is laughter. My mom turns pale and gave that stare that said run no matter what u hear. Despite what my heart says, I listen to my mom and run back to my hiding spot.  I cant hear anything now because Im crying quietly trying not to make sounds.  I hear my mother scream then drop to the floor. I run the fastest I ever ran and broke the rogues neck.  My mom: Bunny come here" she whispered.  I slowly sit by her side and see her side is bleeding very bad.  Me: M-Mommy dont d-die plz. I need u" I sobbed.  Mom: Listen to me" she said before looking around.  Mom: You are more special than u think. Take care of ur sister and if u ever run away there is a safe behind the picture in the attic. I love u bunny and remember Im always with u" She took her final breathe looking behind me.  I look behind me, sobbing only to see anger and hatred in his eyes. Me: D-Daddy mommy isnt breathing. Is she ok?" i ask Dad: She is dead because of u. U are no longer my daughter.  The look of horror flashed across my face. My brother looks surprised. That was 8 yrs ago and ever since Ive become an omega and the packs punching bag.  Tomorrow is my 15th birthday which means I can find my mate.