Okay..Me and my boyfriend are ttc.

The first day of my last period was 15th of july it lasted 4 days, it was pretty light. And scanty, thought it was pregnancy but I took a test and it was negative. Anyway yesterday morning I had tiny red lumps in my knickers, they were ina discharge sort of thing it was stringy and bloody there wasnt much though. Anyway then I had yellow discharge and for some reason I think my urine smells of vinegar lol. And the other day I noticed a lot of veins on my breasts standin out more comdin down from my neck, and ive never had this before. I even got a vein showing going around my nipple :s im so confused because the red stuff couldnt have been implantation so early could have it? Helpp :(