As a side thought: do rapists even think that when they rape a woman, she could become pregnant? Or is that what they want? That's disgusting if that is also on their agenda.
Turning an already horrific experience into a 9 month bodily violation with all sorts of mental and physical complications thrown in; an unwanted child put there by a violent thug, and then years of raising the product of rape, and being reminded of the attack by looking at the child must be unbearable.
I think that depends on the situation. Generally I'd say no, I'd also say that when it happens these guys are not even thinking ten minutes down the line, never mind 9 months. They're not even thinking say, in the case of sexual harassment/rape in familiar situations how awkward and difficult it's going to be the next time they see their victim. I think the sexual urges usually are a different thing from the wanting to reproduce, as we've said it's usually about control and power in humans.
In some cases it's totally deliberate that they rape with the intent to cause pregnancy. Especially in war situations. A recent one where that happened was the Bosnian War in the 90s. There was systematic mass rape by both Serb and Croat soldiers, intended to ethnically cleanse by way of 'spreading their own seed' among the losing side.