I think the key word in the definition, Mr. Sylwester,  is "distinct". Since a zygote cannot exist without the body of a woman and since the woman is capable of withdrawing of consent as well of physically removing the zygote from her body, I don't see the point of your argument although you're welcome to it.
Being born of the male sex, I don't see how you have access to a zygote, Mr. Sylwester, but should technology allow you one day to have female reproductive organs capable of producing and sustaining the life of a zygote, by all means, get one of your own.
In the meantime, you are entitled to philosophize about the existential status of women's zygotes. I would simply suggest not indulging your fantasy too much. You might become confused that you can legitimately own or control women's zygotes, an obviously ridiculous proposition.