Does one have a moral right to argue for the morality of the circumstances which allowed them to be born?

Let us assume all human beings have a 'right to life' started at conception, as those who are pro-life argue. And, let assume the validity of the Bible verse Jeremiah 1:5- "Before I formed you in the belly I know you; and before you came out of the womb I sanctified you and ordained you a prophet to the nations."

Accordingly, my life is justified (not meaning saved or anything of the sort, but made permissible by) by God. My question is, does that mean that whatever happened in my parent's life is ultimately justified because they met and had me, even if the individual actions may have been detestable?

If the response is yes, and the entirety of their actions were justified because I was able to be created because of it, then why would not every individual action have to be justified, and therefore moral. And please respond to this extension: other cases of that immoral action, if the immediate conditions were the same, therefore could be considered moral even if that case did not lead to my (or any) birth.

Now consider that immoral action was abortion, performed by the mother when she got pregnant as a result of consensual intercourse in college, while she was working a job with dangerous chemicals in order that she would be able to pay for college. Would that abortion, after I were born (with another father), be morally justified because of my 'right to life'? Or does the right of the unborn baby's life remain transcended and immoral and lead to my birth being immoral because the circumstances required for it to be achieved were immoral?

As a side note, in my opinion so do base your answer on this and if you wish to respond do so separately, the last case is Biblically justified, because both the unborn and me were sanctified by God, and he/she was a prophet to the nations by extension through me who is as well ordained as a prophet of the nations that this message about abortion being morally justifiable be spread. Therefore, the unborn child's purpose was in fact fulfilled.