Pregnant? Heavy implantation?

Lidia

My period was due 4/25 but im irreuglar so somtimes it comes a little later. Anyways i started spotting brown 3 days before my period was due. Yesterday i thought my period started as it was semi heavy only when i wipe none on pad. After an hr it turned back to light brown.. today light brown again. Im so confused? Please help me figure this out! I dont want to test again and come negative. Tested the day my period was suppose to come.