Help!

Kendra • Stressed, blessed, and coffee obsessed mama of one, life story photographer.
TTC #1. I had a miscarriage about three months ago and had one normal cycle followed by another cycle two weeks after. Now I am late by almost two weeks on my current cycle and I'm having some odd symptoms, including sore breasts. I've taken three pregnancy tests and they all came back negative. What could possibly be going on? I'm so confused.