I want twins but I don't have no twins in my family!

Hey ladies. So I have 2 under 3 years old and I really want twins this time. But I don't have any twins in my family. Is there any thing I can do? Nothing to do with injections or <a href="https://glowing.com/glow-fertility-program">IVF</a>.
 Something natural that I can do that worked for anybody that has the same problem as me!