No idea what to do!

Emma • Mamma to two. One 💙 three 😇, working on my 🌈

So I'm 18 DPO, no period, had cramping for a couple of hours taught my period was coming as I only cramp day of my period! Still nothing!!! I'm about 4 days late, got a few faints but iv been getting negatives between each faint? Im still getting lines on my opk's but there not positive lines but there still there.

Has anybody any idea on what this means?