So i've been having very light pink and intermittent bleeding for the last 4 days. It's not enough to wear a panty liner but noticeable when i wipe. Sometimes there's nothing there at all during the day and then throughout the evening i can see it more on the paper. It's very light pink blood/spotting sometimes and i've got no cramping. My last period started the weekend of 21-22nd december and lasted a week (finished 28-29 january) and since i finished me and my bf been having regular sex and now i'm not sure if this is an early period or implantation bleeding? It seems very unlikely i'd be pregnant as i have a copper IUD fitted for nearly 3 years now so i still ovulate and have a menstrual period. Or if this could just be a side effect from that? Never caused me any problems before. I've also felt like i've been needing to pee more and last night had a headache which i don't usually have. My cycle is pretty regular and i generally don't ever spot between periods unless it's 2 days (possible ovulation) but this seems slightly more and nearly 5 days this month just before my next period so not sure what to think? I've never been pregnant before, really seems unlikely with my coil as the chances are so low! Any help appreciated x