4th day positive Ovulation test.. what does this mean?

Janine • Mama to Sienna Rose + little pea due 10th Aug 2018

I'm now going on my fourth day with positive ovulation, tested at midday each day (threw away the first positive so not in the pic) I had BD the first day it was positive and second day it was positive. I thought I'd be done BDing by now 😂 do I just keep going?? Why would it be going on so long? I'm on day 22 of a usually 34 day cycle