Twins

Hi ladies,
I am turning 34 next week. My husband is 40. We are trying to get pregnant starting next month... Any natural tips/advice have  twins? I know nothing is 100% accurate, but we all know some beliefs from grandma and older generations. Would you be so kind to share with me? We would love to have two babies, but because of health reasons, we can only have one pregnancy... Thank you in advance! 😘