Unsure

Well ladies I was wondering if its normal to spot 5 days after your missed period. My last period was january 22 to the 26. I was due for my period at thr end of February. Well I never started my period and 5 days after my missed period & I started spotting a brownish red color which usally happens when im going to start but I never did and I had a reddish brownish mucus I when I wiped and after that just pinkish color and that last for 3 days but it wasnt. Heavy enough to wear a panty liner. So I took a couple pregnancy tests and they both came out negative. Ive been ttc for a while now and just wondering if anyone has had this happen or may know what this could mean. Thanks ladies and sorry if it was to detailed.