Positive opk day and sex after plus pregnacare conception

Baby danced on the 6th and the 7th then got a + opk on the 12th then baby danced on the 13th (multiple sessions) and on the 14th again. Then had stabbing pain on my lower back on the 17th (it didn't last over 5 minutes) then i had slight twinges on my right side and abdominal area for 3 days after that. Is this good?