My 8-yr Old Son, Matthew, Is Bleeding From The Roof

My 8-yr old son, Matthew, is bleeding from the roof of his moth close behind his two front teeth. He has no loose teeth. I applied pressure for 15 minutes to the area it looks to be coming from but it is still bleeding. I also tried putting ice on it, to no avail. I don't think it's an emergency situation but it is close to bedtime and I don't want him swallowing blood all night. He has Cerebral Palsy and a host of other health issues. Thanks so much.