Hey, so I think I ovulated 25th October, I’ve felt sick ever since this day with backache, headache, boobs veiny and tender. My period was 4 days late and only lasted 3 days? It was heavy for about half a day and then was pretty light for the rest. I still feel sick constantly still have headaches and still have back ache, stomach is bloated and I was constipated for about 5 days but that has just settled down. Could I be pregnant or is this in my head?!