I'm not entirely sure what your question is. But here are a few things to consider:
1. Getting an abortion does not affect whether one is married.
2. Your romantic partner, whether you're married or not, has no legal ability to prevent you from getting an abortion, or to compel you to get one. Neither do your parents (unless you were judged to be mentally incompetent, perhaps, but that's unlikely and gets more complicated).
3. Depending on his age, and yours, and the laws of your state, your partner may well be committing a serious crime by having a sexual relationship with you. Marrying you will not necessarily change that; it might even be seen as an admission of guilt. He's taking an incredible risk, with very, very serious consequences.
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