I agree, give up the charts. I charted with my DS and it was so stressful. We're trying again now for our second and, while I admit I am paying attention to my body's clues, I am NOT going back to charting. It made everything so tense and the sex, to be blunt, just wasn't as much fun.
Give up the charts if they make you miserable, but def go and have any tests you can have done. We were TTC for years until we eventually had some tests done, there was something wrong with me that was easily fixed and had we not had the tests we'd probably still be TTC now so def worth it.
I confess I gave up the thermometor last month and caved in afer about 8 days when DH said but you'll hate it not knowing where you are meaning he'll hate it not knowing if we were in with a chance or not .
We did see the GP together after 6 months and she arranged basic tests (blood and scan - results were 'no further action required' - so presumably fine) for me but said DH 'must be OK' since we conceived once last year (mc at less than 6 weeks). I'm 38 and DH 44 GP says we can be referred to specialist one year after the mc if we haven't conceived again.
I do feel so out of control of what is such an important thing