But once that egg and sperm implants and those "clump of cells" aka a heart comes about, it's a life. It's no longer just "your body, your choice" it's a babies body as well. "Your body, your choice" you choose to have sex you suffer the consequence.

I don't really have any strong feeling about whether an embryo/fetus/bundle-of-cells-with-potential-for-life is a person or not. Whether an embryo is a "person" or a "combination of cells with a potential for life" doesn’t particularly matter to me. A person (or embryo, whatever) doesn't have a right to use or live in another person's body without consent. The issue for me is bodily autonomy, not personhood.