ovulation chances

So my husband and I have had sex every night since Last Friday as I thought I was ovulating last weekend. My opk tests were all negative so I was starting to think I didn't ovulate at all! Yesterday arvo the test got darker and then this morning I'm pretty sure it was positive! We had sex last night as well as all the nights previously and will again tonight when he gets home. If my test starts to lighten up again tonight do u think we will still have a good chance considering we had sex last night and not this morning when the test was at its darkest? I hope this made sense