I've had light cramps consistently from my ovulation date until 7DPO, my cramps disappeared and came back more like intense period cramps today (8DPO). Thighs and back ache, for the past 3 days I've had an increase in chocolates (not usually a chocolate person), my nipples were sore from ovulation and stopped at 7DPO. Felt snappy all day with OH over silly things. PMS symptoms or could it be implantation cramps? 