Or any panty liner.
I also use them for discharge.
They aren't the same they're shorter and really thin. They sell them at the dollar store. It will say liner on the front of the box. I use them for discharge. And I used them before pregnancy with my tampons for when they'd leak.
You can get panty lines if you are bleeding that light. I use them with my tampon in case I leak (before I was pregnant ) they are super thin, you can't feel them but they only hold a little bit of fluid and they are not as long as pads are some are thicker than others though I don't like the Playtex ones they are thicker
They make something called "light days" which are super super thin and not long. They might work better for you. I had all different thickness of pads when prego! best of luck to you