The law doesn’t make you legally pregnant before you conceive.
All it does is say that the pregnancy starts immediately after the date of your last period. Which is what is most used to calculate gestational age, if you don’t know the exact date of conception. So if you become pregnant the day after your last period, your guesstimated gestational age and actual gestational age are pretty well sync’d up. If you become pregnant after your last period, (for example, two weeks later during ovulation), then your actual gestational age is two weeks younger than what the state now says. This age is now used to determine legal abortion time frames, which could be 20 weeks (what it is now) and 18 weeks, depending on the date of actual conception.
It doesn’t make this law any less ridiculous, but saying that Arizona makes you legally pregnant 2 weeks before you conceive, well that’s not completely true at best, and an exaggeration at worst.
I am not a woman, nor am I a doctor, so please correct me if I am wrong on any of this, or if I should shut my mouth because I’m a dude and I have no business in women’s issues.
I am only saying that we don’t need to spread half-truths and exaggerations in order to create anger and indignation. More than likely, the actual full truth will do that just fine. This goes for a number of issues that we face, not just this one. Snark, exaggeration, and hyperbole do nothing more than entrench the opponents of whatever item that is being debated, and gets us nowhere closer to an agreement or resolution.