Am I seeing an EXTREMELY FAINT POSITIVE??

Hello lovelies! I am new here and hope some of you maybe been experiencing the same? I have a 28, 29 day cycle, ovulated on Cycle day 16 (confirmed with a clear blue ovulating kit) - done the deed that night and 2 nights before (with flashing smiley on ov kit). Since the past 3 days I have been having like a stretchy, pulling feeling in my ovaries - more on the left and extremely tired, I feel asleep at 8pm last night! My BBT has stayed high too. Done a clear blue ultra early test this morning and I am sure there is a VERY faint line? I then done a sainsburys test and I feel I see another faint line!! Hard to pick up on iPhone camera!!