feeling overly aroused...

Hi there, I’ve settled into a fairly regular pattern where I get to cum roughly once each week. Throughout the weekdays, we have sex nearly every day and my wife reaches orgasm almost daily too. Each time takes about half an hour. The issue is that after four or five days pass, I build up so much desire that it becomes difficult for me to penetrate her. Actually, yesterday I accidentally ejaculated inside (by the way, since English isn’t my first language: is “cum” treated as a regular verb?). How do you handle this? Perhaps skipping penetration for a few days and using a vibrator on her instead? Does that intense feeling of being horned off drop after not having stimulation for a bit, allowing me to resume intercourse without rushing into climax? Cheers.