You're posting your question in the BPD forum. Do you have borderline personality disorder? If not, you may want to post your question in the Sexual Health forum. The people there should be able to help you with your questions.
I have never heard of watching porn causing gender issues. If you are having confusion about it, just wait and see if you still feel the same in a year, by then you will know. :-)
I'm glad to see your question was posted in the right forum.
I agree with Bluecrystal. Porn will not cause you to have gender issues. I've never heard of that happening either.
You may want to see a therapist to talk about how you're feeling.