Anyone had implantation lasting 4/5days medium flow?

Had this for 4/5days not changing in flow very watery and pale pink. Defo not my period as not normal for me, Thursday night (10dpo) started having right side pinching and pulling feeling then started spotting pale pink watery when I wiped, by Friday/ Saturday I had to wear a pad as was medium flow but still very pale and watery (NOT my normal flow) boobs tingly for the last week and nipples changed in colour, took test on Sunday still negative, today exhausted feeling sicky and faint had to nap and when I woke up still so tired I could barely move. When dinner came wasn't really in mood for it. It's all very confusing can anyone help? AF was due today aswell...