So my last true period was 12/15-12/20/17, I ovulated Jan 5 or 6, which my husband and I did have sex those 2 days. I had such sore nipples during the TWW. Then my period was late in Jan, I experienced a mixture of really dark brown and pink spotting from 1/20-1/24. 4 days later I started having more of the same spotting except this time it lasted 7 days. Also I didn't have any symptoms during the spotting and both times it was light. I took a pregnancy test when my period was late and it was negative, about a week later I took another one and it was negative again. Could I be pregnant? I have a doctors appointment tomorrow and I'm gonna request blood. Has this happened to anyone else?