Period as normal on 1st dec lasted usual 4/5 days. DTD once 14 Dec and a day later bled for 2 days (spotting). Never ever bled between cycles before. Now obv on 16th of the following month and no period yet. Feeling a little nauseous and craving odd things. Tried to do a test but both were faulty and have one left to do one in the morning as soon as I wake up. What are your thoughts? Implantation bleeding cudnt have occurred that soon.. we have DTD since that 'bleed' but only maybe once and more recently.