Summer's Eve Cleansing Cloths

Okay so I've used Summer's eve wipes a few times here and there and every time I use one I end up lightly bleeding for a few days. Like when you think your period is off so you don't wear a pad and end up with a little left over blood type of bleeding. And sometimes it has an odor. I used the wipes 3 times so far and it's happened each time. The first time I didn't think much of it, maybe just a light period. The second time raised my suspicions so I tried for the 3rd time and realized this only happens when I use the wipes. What could be the cause of this??