Can you get infections easier on your period?

So I’m bleeding very lightly and i think it’s too light for a tampon, but my family is going swimming in about an hour. If I went, would it be easier to get bacteria up there since I’m on my period?

The river we are going to isn’t the cleanest so I don’t want to take a chance and get an infection in my cervix or anything. This might be a stupid question but oh well lol