When to start taking lactation “help”

Ch

So I’m pregnant right now ☺️ with my first! I hope to be able to breastfeed...I’m wondering, when is a good time to start taking supplements to help with milk production? Sadly I know a lot of my friends were unable to breastfeed long due to their milk supply and I want to make sure I’m doing everything I can to prevent this. Thanks in advance everyone ⭐️