Help! Short luteal phases and don't know what to do

I've started tracking my cycles and using opks for the past two months, in hopes of conceiving #2 sometime in the near future. However, it's become apparent that my luteal phase is too short, like 8-9 days, 10 days this month. I am still pumping breast milk for my little girl so I dont know if that has any impact on progesterone or if there is anything I can do to ensure that I have enough progesterone? Any insights or tips? I just had to share bc I become nervous at the thought of there being anything "wrong " with my body. I can get patient and wait to conceive of God's schedule, I just don't want to neglect something potentially awry, if that's what this short luteal phase business is. TIA!