What is considered regular when it comes to cycles???

I have an appointment tomorrow to see why my husband and I haven't been able to conceive for 18 months. I always thought I had a regular cycle, but now I'm not so sure. Does this look very regular? I also sometimes have tiny clots in my blood and painful cramps for the first 2-3 days(although it's been this way for so long that I don't really know if it's painful or normal anymore)... I am pretty sure I ovulate bc it has been confirmed with clearblue fertility monitor/tests. I wish I knew what was wrong with me