TTC tips for a newbie 😁

my husband and i have been TTC for 2 months now with no BFP in sight 😭.  i tried the ovulation tests during my fertile window according to the app, and they were always no LH.  how do i know when i am ovulating? i am 25 (going on 26) my cycle is all over the place (between 26-32 days).  i have read about fertilaid and how it helps to regulate your cycle and help with conceiving, anyone with opinions on it? thanks in advance everyone, wishing everyone baby dust and a BFP!! #alliwantforchristmas #cmonbaby