I'm so confused... I'm 3 days late and according to my <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">period tracker</a> I'm like 12 days DPO and my nipples hurt but my tests are really confusing me cuz they look negative but I did have one positive but it may be an evap line.... I feel crazy I also have been drinking TONS of water today so maybe I was diluted idk. Help? Advice? Last pic is twat from yesterday and was First Response.