Help with pregnancy test reading

I ovulated on 4/17-18. Today would be the 28th day of my cycle and I still don’t have my period. I did test all this week and had a very faint positive lines but cannot tell if it is an evaporation line on all tests. I read them at 3 mins. Would the tests come up positive by now? The pictures are from different days (the lines also looked darker in person). Thanks!