Help please? Has this blevwr happened to your 4month old? He was born premature at 7 months

There was a little blood on his poop first time this happens. He didn't cry when he pooped tho so I didn't know until I changed his diaper. I'm worried because idk what to do I have no way to get to his pediatrician or ER. Is there anything I could put on him or give him to help him ? No rude comments please.