Am I out this month? 😞 please comment!

My cycle is regular at 28 days. At 9/10 dpo I had mild cramping on and off in the evening time, 5pm to around 11:30pm both times. The cramping wasn't painful just uncomfortable enough for me to notice. I'm now 11dpo almost 12dpo, and was taking my cm check (tmi I know sorry gals) around 2pm today when I noticed a glob of light brown discharge with little tiny stringy flecks of red. I had some cramping today as well as irritability with my DH (not his fault! I was just cranky about everything!) and my right breast aches on the side, middle and bottom when pressed. Left breast is absolutely normal? I'm not sure if I'm confusing PMS with pregnancy symptoms. I tested this morning and got a negative, but I'm still only 11dpo and it was an 88¢ cheapie so I know there's still a chance. I'm just confused but hopeful. Anyone have any Input? We're only on cycle 3 of TTC but it feels like forever when everyone I grew up with is already on their first to second child...