Spotting after orgasm? (TMI?)

Hey ladies! My SO and I haven't really started TTC yet, I stopped taking the pill and we were waiting for my period to start trying. Two days after Glow predicted I should get my period I got some brownish discharge when I wiped in the morning. No more discharge, then next morning I got a little bit of pink discharge when wiping in the morning again, but nothing else. I just thought that my period had been super weird because it was the first one after the pill. 2 days later (yesterday) I had an orgasm without penetration and when I wiped a couple of hours later I had a tiny bit of brownish discharge. Has anyone had that without being pregnant? My SO is travelling and wants me to wait for him to get back to test, but I'm going nuts wondering if I could be pregnant!