I've just turned 40 and TTC first baby. We've been trying for just over 12 months 
This month though things feel different... I ovulated around the 12th (I normally always get ovulation pain and no different this month). A day or so later I started getting mild period pains, just a nagging dull ache. I've not noticed that this is normal for me, but it seems the longer we TTC the more things I notice about my cycle! I am also getting headaches - not constant and I am really really teasy at times. I fell out with my mum over something very trivial which I seldom too and got really irate at someone driving way too slow in front of me the other night
I am also experiencing lower back ache... I don't know If I am imagining all these things because I am desperate to be pregnant of if these are early signs..???
Oh well only 6 days to wait..... feels like 6 months!!