Confused?

First time TTC and I’m 14 DPO today and I’ve been super bloated, bitchy, hungry and extremely exhausted. I’ve had weird cramps on my lower left side so I thought for sure I was pregnant. Tested Monday it was negative, tested yesterday same it was negative. I’m 3 days late for my period and today my boobs hurt really bad and I’ve had weird pressure on my left side near my hip and getting a little bit of brownish discharge. This isn’t normal for me before I start. I’ve read implantation normally occurs 9-12 days DPO but could be up to 14 days? Im curious if this is implantation? How many of you girls have had implantation 14 DPO? Sorry for the lengthy post just praying I’m pregnant and when I should test again?