So, you have a felony history, you've relocated states (giving you a bit of a clean start.) The Feds won't give 2 shits about you and your 2 plants (or even 20 plants, if you can legally grow them, there.) The state will give you a card, making you 100% legal to consume cannabis. Yet, you'd rather not get the card, because ... ?
I'll let you in on a secret, even if you are a federal fugitive, having that card doesn't help them find you. Even if you get that card in your real name, while you are a federal fugitive...
EDIT: And, from the sounds of it, you met a woman, moved into her house, and are living with her, but under her care and "protection." She's got a child... Yet, you'd rather worry about yourself, and being "in a book" over the child and woman... Don't worry, she won't leave you for risking her and her child more, just plant more plants. She's already allowing you to endanger her house, freedom, and child. I mean, if you had a card, that would all become trivial, but, since she's already letting you do it, go for it.