symptoms 4 dpo

Brianne • Married, trying for baby #1!

Hi I'm TTC #1, and I'm currently 4 dpo. I'm having some pretty bad gas, some mild cramping/discomfort lower right side (near my hip), and I just had a little bit of brownish discharge on my underwear (but nothing when I wiped.) Could this be implantation, or is it too soon to tell?