It made me have horrible migraines

Fenugreek made my baby super gassy. Increasing water, feeding on demand, and rest are the best ways to increase supply. If you absolutely have to use a supplement, oatmeal, flax, and mother's milk tea are a great place to start. If baby is having enough wet or dirty diapers, you don't have a low supply and shouldn't need to try supplements to increase it.

I've been hearing that the fenugreek has not good side effects. I'm not really sure how true it is. I haven't researched it for myself.