Is there a blood test for peri?

[flu4xmas]

After years of fertility treatment then a pregnancy, I'm pretty clued up about my cycle.

For the last 6 months or so, my cycles have been much longer than usual. I've also had some mid cycle spotting and low mood. GP has checked out the spotting with an US. All fine.

I'm beginning to wonder if I'm peri? Is there a blood test that could confirm?

Blood tests for peri are very unreliable as your hormones are so up and down, one day you could have normal to high hormones and the next day the hormones could be non existent. Some GPs still send for blood tests but the results should not be used for diagnosis alone.