Ay sis, based sa timeline mo, perfect na ngayon mag-PT kasi 5 days na delayed ka na, usually accurate na ang results by now, lalo na if you use a sensitive test! I'd suggest morning urine para mas clear ang line, but honestly a few of my mum friends din nag-PT after 3-4 days ng delay and nakita agad nila, so baka positive ka na talaga. If still negative ka pero delayed pa rin, magtest ulit after 2-3 days or better yet, consult your OB na para sure at peace of mind. Good luck, mama!