Don't wait to seek medical attention. Seek out a good island doctor. Better safe now, then sorry later. Best of luck.
ANY bleeding like this should be investigated immediately, I'm sorry to say.. Don't want to panic you, but you really should have him get it checked out asap. I don't know about clots, but I know bright red blood usually means the bleeding is somewhere in the intestines; dark red, almost black, blood (like coffee grinds) indicates possible bleeding in the stomach (internal bleeding) that can be very serious.
He has already waited a while so I can see why he wouldn't think it was urgent, but it really may need immediate attention. I feel bad for you; if it were my husband I would 1) be pretty nervous about the whole thing and 2) want to kill him for not going!
Good luck with this, I hope it turns out to be something simple.