Hello. My husband and I have been ttc for a few months now. I am a very regular 28 day cycle, but I have never really tracked when I ovulate. Today is day 31 for me. on day 28, we had sex, and I started bleeding. Makes sense, I put a tampon in, went to bed, and next day, no period. I have been having bad lower back pain, headaches, super moody and sensitive, i have been constipated and gassy the past week, and yesterday some clear liquid came out of my right breast! That convinced me that I was pregnant, took a test, but it was negative:( We have 2 kids already, and both times I took a test they were positive in literally 10 Seconds. Could I still be pregnant? Should I go get a blood test?