What is going on!! Any thoughts?

So my partner works away and was away pretty much all of July so it can be quite difficult to catch my cycle at the right time of the month to conceive.

But my period is now several days late, I’m usually a pretty regular 28day cycle.

Could I have possibly ovulated so much later than glow has predicted.

I haven’t taken a test...it doesn’t feel worth it.

Anyone else experienced this?