Uhhh period is going wack

so basically i started my period this morning and it’s basically on time the prediction was for tomorrow so it’s not a surprise as it usually comes a day early and i woke up and it was pretty heavy and in a two and a half hour period a super tampon was SOAKED and i was bleeding through and everything which is krona for the start of my periods because they’re heavy butttt as soon as the tampon came out i started wearing pads cuz i was jusgg th bat home and there’s been barley any blood at all. just a little every hour or so and it’s not like it stopped or just brown it’s just very little. yes there’s a slim chance i’m pregnant but i’m not sure what’s going on