Please Help.

Cearrah
I have been having issues with ovulation, went for blood tests doc said I was not.
This month I decided to try ovulation tests
I got a positive on 4/19 and on 4/20 that was only 5-6 days ago. 
We never had sex during that time. 
But we did this morning, do I still have a chance to become pregnant? 
I decided to take a ovulation test today, just to see and this is it. The first line is actually pretty thick but def not as dark as the control line. (Test by itlself)
Day 11,12 def are negative ovulation tests but the lines are thin and not thick. Of course say 13 is positive and 14 which isn't pictured looked the same. Then day 15 it got lighter.