Fertile Genes

Lindsay • Gwendolyn Eloise born 2.10.19 👶🏻🎀

Serious Question: is fertility genetic?

We're just starting TTC and I'm curious if anyone can tell me if fertility is genetic. Both my brother and sister have had multiple kids close together (my sister's first before her first anniversary) and my husband's parents had six kids (none of his siblings have TTC yet) - just wondering if this bodes well for us or is meaningless?