Humans have understood the process of gestation ever since chickens were domesticated. It makes sense that humans would understand how a human fetus develops, after thousands of years of animal husbandry. That is not a valid "proof" of a god.
Silica is an abundant substance on this planet. As Carl Sagan said, we are ALL starstuff. Ants, people, Kanye, buffalo, plants; everything. Except Kanye. He was dredged from the taint crust of Satan.
The sun has no awareness, sentience, consciousness, id or ego. The sun cannot choose to act. It cannot "search".