husband is a total weirdo!

We started trying to conceive our second child at the end of December and I got pregnant on our first try. We lost the baby when I was about 10w to a natural miscarriage. My obgyn said we could start trying again after my first period. Aunt Flow has come and gone and I am READY! My fertile window starts tomorrow but my husband refuses to cum in me because we came across this thing on a tarot website about parent-child sign compatibility and now he's only open to trying during certain time periods so we can try for certain zodiac signs. 😤 He doesn't even believe in horoscopes, he just believes in sign compatibility! How can I make him understand that it doesn't matter??