Hi, I'm 35 and only just started ttc. This month I ovulated and we tried 8 days ago. After a few days I had some spotting but now it seems quite a heavy bleed, like a light period and being going on for nearly 5 days now. Any idea what has happened here? Should I be worried? I did an ultra early test which was negative but I expected that much anyway as it is still very early. Advice appreciated.