TTC - spotting

I'm really new here. We had a miscarriage in June and just planned to relax and see what happens. My periods are usually about 31-32 days long, thought I finished ovulation last Monday and had intercourse the following day. Was due my period 2 days ago but it didn't arrive, had some pms  symptoms a few days ago and then some very light spotting! Nothing since, no symptoms except tender breasts! Anyone had anything similar? Is my period late and spotting something I should get checked out( I never spot - usually get full blown menstruation!) any thoughts are welcome! Xx