Had an implanon removed in May, had unprotected sex on ovulation day on the 1st of July. Been feeling twingies, cramps, lower back ache,headaches,frequent urination,dizzynesss, fatigue since then Spotted for 48hrs on the 10th July (10dpo), had two hcg blood test all negative at 14dpo. Im confused. Was d bleeding due to implantation cos I didnt experience it wit my first pregnancy four yrs ago and am I pregnant? AF is due today 15th July but ive not started.