I was due on on Wednesday. No sign of period. When I wiped last night I had dark blood and discharge, I've had nothing since and didn't have anything in my knickers. Could it be implantation bleed or spotting? I'm exhausted and feeling very sicky. My boobs are tingling, sore and extremely veiny. I've taken first response and eBay cheapie tests but its coming back negative. I'm feeling very fed up and down. We have been trying for 6 months and I really thought this was our month as I feel so different. We caught first time with our first baby but this time round it's really tough.