it probably wouldn’t as you can’t even recognize any form during the period of time abortion is usually allowed. it’s basically just flakes of tissue. you’d have to take a sample and check the chromosomes to detect the sex, but I don’t think that’s easy. https://www.dailymail.co.uk/health/article-11331955/Pictured-fetus-cell-tissue-nine-weeks-point-abortion-banned-14-states.html