What am I doing wrong, could I do something different???

So I've been ttc for 6 months. we usually bd every other day if not every day at least once, sometime 2 or 3 times in one day. I use preseed and we do the little tricks like putting the pillow underneath to elevate the cervix to help the sperm more, I also bought softcups and used it for the first time last night. Fertility friend said I inoculated on the 7th of this month, But ovia said I ovulated the 13th, And glow said I ovulated the 10th. my cycle is usually 35 days long, and I'm expecting AF the 25th. is it too early to test? I just took 2 because I was too impatient and my breasts are tender and tingly but it's was a BFN but it could be AF, I guess. I just needs tips or something. I'm starting to worry if it's an underlying issue with my body or something. please