I had a +opk on 4th, and have been testing negative pregnancy tests. But yesterday I had brown, pinkish spotting. I have irregular periods, so 14 days after O doesn’t happen to me, sometimes period comes 16 days later or so. I don’t temp but I feel my body cool after waking up, different from my last pregnancy symptoms (ended in mc). This is very strange to me, I just wonder what could cause that.