As you know, I too was rejected by my mother, and SHE didn't even get stuck with me in the sense that she got pregnant, she adopted me, SHE went through an entire legal process to get me. Oh what a wonderful person she was!

There's such a deep headfuck that really stays with you when the one person on the planet that's supposed to love and protect you without reservation or condition doesn't. They way I prefer to look at it now is my mother rejected me (unless she had something to brag about, woman lawyer, head of the class, whatever) is because seeing me was a reflection of the greatness she lacked. I'd lay money it's the same with yours.