HELP!!!! Implantation bleeding ??

​​I started what I thought was my period 3 days early. It was very light for 2 days then stoped for a few hours then spotted bright red and then light pink for 2 days. 2 negetive pregnancy urine tests and 1 negetive blood test on the day the spotting stoped. I still feel pregnant and am 32 and have never had this abnormal of a period before? Could the blood test have been done too early!!! I don't know what to do?