I had my period about a week and a half ago and i woke up this morning spotting brown/red , i've also have had unprotected sex with in the week 1/2???

Use condom + BCP!!: If your concerned with the possibility of pregnancy: Very light transient spotting may be due to ovulation. But it's not implantation bleeding if you only had relations within the past 4 days. It takes the fertilized egg 6-10 days to implant in the uterus. Implantation bleeding usually only lasts for a few hours. Other causes of unscheduled bleeding are common. See> http://cle.clinic/1IDXMvq