Fertility Help And suggestions?!

I'm 24 I believe I'm healthy and young. I'm at 130 lbs. I eat everything that has to do with veggies & meat. Not picky.  Mom of a 5 year old. Have a wonderful husband. Have very irregular periods! I only get it about twice a year. I think this is where my infertility takes place. My moms side of the family have infertility issues. Don't know what causes it. My doctor thinks I'm too young to 'have another'. She's not taking this seriously! 😡 Wanting to switch doctors.

 Anyone else conceived more than once with extremely irregular periods like mine? Any suggestions or home remedies or natural herbs or supplements to help ovulate and conceiving? I'm DESPERATE 😔