Anal and the condom broke!πŸ’©

was doing anal with my boyfriend last night, the condom broke. We didn't realise until he had finished... He had no poo on his penis, I still got him a wet towel to whipe his penis with to you know clean up anything etc. 
Now am I being stupid for worrying he could have disease or something? He was the first to do anal with but I've always been told have protected anal sex or any sex for that matter. help ladies im uneducated with this topic, no harsh comments.