In my mind, rightfully so. This is an awfully stupid argument in favour of the pro-life movement. What say you??
That's not an argument in favor of the pro-life movement, even if the creator of the picture is pro-life. It's intended to criticize the (alleged) inconsistency of leftists.
Also, a fetus is not a person. If it were, it would count towards your age and we could all drink 9 months sooner.
That's a bogus argument. It is similar to all other arguments about the fetus not being a person and is subject to the same rebuttal.
First, regarding age, it is indeed true that the current concept of age is flawed. However, it is so firmly attached (and has been for thousands of years) that is pointless to attempt to change it. Further, we don't know when the child was conceived (or, at least, people didn't know thousands of years ago), only when it is born. That does not mean that it is not the beginning of life.
As far as the drinking argument, it is perhaps even less legitimate than the arguments of dependence/sentience/appearance/etc. Why, of all things, should drinking be a/the deciding factor in determining an object's personhood?