Lost and confused

Chrissy351982

My periods normally last three days start to finish. I was due feb 16th. I spotted a couple times. Then started noticing fish like flakes in toilet but they were dark red. Later thought I got my period, so I thought. Bled for not even a full two days, and was pretty light. Saturday I noticed red fish flake stuff in toilet. No bleeding. Also noticed what I can describe as dried white milk on my nipples. I have had a child nine years ago and never went through this. Only nipples hurt to the touch. Breasts are more perky and firm as if I was in my 20s. Is it possible to be pregnant right now and the urine tests to insist on saying negative? I called my doctor and am waiting for a call back