need help??

Tiye

so i dont know when i ovulate because my period is super irregular i never know when its going to come so tuesday i got alittle pain on my left side. wednesday I started getting brown blood/Pinkish a little( red some times) but i only needed a panty liner but it was barley blood on it and i have been having it 5 days now and my normal period only last 3 days and its never this light could this be implantation im thinking to far ahead or a period?