I noticed some typos in your poem, and thought that I would help :)
Typos: third line 'don't' should be 'doesn't.' Thirteenth line, 'you' needs to be 'your.'
This is an emotional poem, plain and simple. I don't know if this is true or not, but I imagine that it probably isn't from reading your profile, which I am glad. I don't know what it feels like to be unwanted, but I can imagine, and it is nothing good. Especially when it is your own blood mother that does not want you? That is sickening.
I don't know if you noticed this or not, but you used words that sort of rhymed which helped with the flow of the poem. I really like this.
Again, I hope that this isn't true. No one should be 'unwanted.' We have all felt this way at one time or another, but to actually be unwanted is a cruel thing.