18 DPO BFN

I’m currently 18 dpo and I’m still receiving negatives tests. I understand that it’s actually too early and I should wait about a week to test but I’m just a little nervous.

I’m very regular and my periods fall exactly the day it’s supposed to, so bring four days late is a new one for me.

My lower back all around my lower abdominals have this dull ache/pressure that’s lingering and I have this constant wet feeling like my periods coming but nothing there and I wasted two pregnancy tests already for a negative.

I’m going to keep my faith extremely high....

Is it still possible for me to still be pregnant?