So I texted her later and asked if she would take the pill and she said no. And she got mad at me. She already gets mad at me when I ask her about her period. Now she also said she won’t even tell me if she goes on her period.

She is right to be mad here, don't ask stupid questions and don't expect or ask her to take pills.

She also said if she ever did get pregnant she would not tell me. She would get a abortion she said. But it’s illegal in our state. And she just said she would try to miscarriage it and never tell me.

This is fucked up on her part. It's either her defense response to you being intrusive about contraception, or she is acting crazy. Abortion is fine, but miscarriage bit is madness.

So.. first of all, just wear condoms, and look into natural contraception for men, like regular hot bath therapies. Second, if she is not your wife, she is well within her rights to abort. Third, inducing miscarriage naturally is dangerous.

You both are red flags, sorry.