I'm so sad to read this thread. It's hard enough for women to report rape and be believed, without women unable to agree on what rape is. As said many times, NO means NO. No grey areas. No reasons, excuses. When a woman says to stop and a man does not, regardless of the time it takes for him to, whether he is at the point of orgasm, whether he is married or any other rape apologist bullshit, it is rape. This husband had consentual sex with his wife, that changed to non consentual and he continued. That, is rape.
It's not man hating, it is calling a spade a spade. Not dressing it up to try and soothe the OP. I am deeply disappointed by many of the replies on this thread.
OP, sometimes when I have sex with my DH, it becomes painful. As soon as I tell him so, my DH stops. This is because he would never want to be responsible for causing me pain. This is because he respects me and my right to stop sex that is painful for me. A good few times it gets painful when he is getting close to orgasm yet he stops. This is because he is not a rapist.
I will say, however, that sadly, in part because of the conflicted views on rape like you have seen on this thread, it is incredibly difficult to report rape and be believed.
What you do know, is that you can never trust your husband to stop if you ask him to. He has shown you this. Whether you can handle that, is of course, your decision. I'm sorry that this happened to you, by someone you love.