I would say no because the fact that they are not using protection already puts her at risk of pregnancy wether they finish or not.

You also end up incriminating a lot of people with a sexual disorder can not control it.

A person should never be believed simply because they say so. Especially simply because of their gender. It is primitive in nature and gives a young adult way more power than they are responsible enough to handle safely.

Even just mentioning it destroys a mans life even of he was innocent. Many of them turn to suicide from the abuse.

That is to say if a friend tells you this you should certainly comfort them, but also help them to file a legal case not a Facebook case.

Edit - reading a bit of the replies I can understand how you might consider that rape of he does so and you say not to, however two major issues with this argument.
1. You are not using protection and have already consented to the risks that entails whether you think about it or not. Not using a condom even without finishing can result in pregnancy. Pulling out can also result in pregnancy. The woman is equally responsible for this result. If a woman can not consider that consent she should be using protection.

However there is a thing called ghosting, which involves removing said protection and that is very much so a bad thing. BUT in order to incriminate this action the woman herself can also be incriminated by means of a lie about birth control and/or stopping it without telling their partner.

2. You may revoke consent at any time however for any time before that they still have consent. You can not backdate consent. The act of saying no can't be used minutes/hours/days later. It must be before or during at which it goes into effect at that time only.

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The number one issue with how this topic is always discussed is that 99% of the time only a man has responsibilities. However as an adult the woman has equal responsibility.

A man is equally capable of being a victim and so all accusations should go both ways.