implantation bleeding?

My period is usually a pretty moderate flow from start to finish. Well two days ago, I thought it was starting. But I only bled very lightly and then it stopped for 24hrs. Then a little more spotting then nothing. Irritating lol I don't like pads and I don't want to walk around with a tampon for nothing haha. Is this a sign of implantation bleeding though? Should I test ?