advice please πŸ’™πŸ’–

Amber β€’ Mommy to double rainbow twins! πŸŒˆπŸŒˆπŸ’–πŸ’™ 5/9/2018 πŸ˜‡ 8/7/2017
Normally right before I start I cramp really bad. I was supposed to start today (7/3) but I still haven't. I haven't had cramps like I normally do either.Β 
We have been trying for almost a year so I took a test yesterday morning (13DPO) and it says negative. Could I still be pregnant and it just be too early?Β 
My boobs hurt and I feel a little nauseous but I feel like I may be imagining it bc I want to be pregnant so badly.Β 
**side note I know the exact day I ovulated bc I have to take infertility medicine and test for it...so I am exactly 13DPO yesterday when I tested.Β