As we understand “science” today, it means, “demonstrable by replicable experiment.” Where’s your replicable experiment on the Virgin Conception?
If we have to use the word “believe,” we’re not talking about science, in the strict sense. I don’t “believe” what astronomers (or biologists, or meteorologists) say about a lot of things that aren’t subject to replicable experiment. I consider their statements and evidence either more or less persuasive, depending on what else is out there, but always subject to reevaluation.
However, I believe in the virgin conception of Jesus with the faith given me by God Himself.
Me, too! ☺