The Alphas Baby (undergoing major editing)

Penelope Rivera is a nice quiet girl who has respect for everyone and everything but what happens when she finds her mate and new alpha River Vermont who is engaged to Jennifer his lovely high school sweet heart.So river rejects Penelope on her birthday and on Penelope's birthday she ends up pregnant and he rejects her and he never knew she was pregnant until his beta, Marcus informs him and months later she comes back and he starts to develop feelings for her what will happen then and what happens when Penelope has a dark past she didn't even know she had?