TTC DIP IN TEMPERATURE

Katie
So me and my partner had sex every day on our fertile week also befor my fertile week. I got a positive ovulation (smiley face ) on 23rd Jan.. I've been tracking symptoms (but no symptoms except sore boobs) I'm at least 11 - 13 DPO (I think) negative pregnancy tests.. and dip in temperature. I had spotting today and cramps in right ovary area ... 😑 any ideas .. i think this month I may not be pregnant .. so stressful lol