Consenting to risk is not consenting to pregnancy. You take a risk every time you drive. Does that mean you consent to to an accident?
Yes, you do. Not to the accident but to take responsibility for the consequences of such as well as all the other exposures driving has with it. That is what insurance is for. Try and tell an officer that you are not going to take a sobriety test when you are pulled over. Simply getting in your car is consent to take one in almost every jurisdiction if not all of them by now. When you have sex, you are, indeed, consenting to the possibility that you may become pregnant. Stating anything less is simply trying to pretend that actions you take do not have real and KNOWN consequences.
That does not necessarily mean that abortion should not be a legal procedure but to claim that the person aborting the fetus did not consent to put it there is asinine in the extreme.