I'm 6+3, 41 years old, first child... Yesterday I had some cramping which lasted all day and night and also some very light spotting (brown). Absolutely gutted. Today the cramping has eased up but the spotting continues, not getting any heavier or redder so far. Boobs not so painful as they have been for the last couple of weeks. 
My sensible side says to wait and see and try not to worry unless symptoms get worse or there's pain on one side etc. And then maybe try to get a scan when I'm 7 weeks. But would I be missing or risking something by not getting checked out sooner? Should I push for an early scan or a blood test via GP / EPU?