Personhood Questions

So there's this ballot vote in Mississippi coming up that defines "personhood" from the moment of fertilization. Basically, it's another attempt to outlaw not only abortion, but in vitro fertilization and even stem cell research. So I have a couple of questions:

Can a person still in it's zygote state receive a Social Security number at the point of conception?

Can a person still in it's embryo state apply for a credit card? A mortgage?

Can a person who was conceived in a foreign country by his/her American citizen parents on a vacation be eligible to run for president of the United States? Or does he need to show his "Conception" Certificate?

Just saying'...