Sure--I have done this many many times. There is no harm in doing this....although it get's harder and harder to keep from cumming the longer / more days you "edge". Many men, myself included, simply enjoy that feeling of being edged...or "on the edge" so close to cumming......it just prolongs the excitement and anticipation of the orgasm.........and it just makes most men super horny the rest of the day....so one week later, you will be so damn horny....and so ready to make love to your BF...it will be a wonderful and very heated lovemaking session......at least that is my experience.....
Lastly.........when you edge for longer periods of time (an hour or more) several times a day...and over several days....you may experience "blue balls" where your balls become very tender and sensitive...and maybe painful........from being over-stimulated......from having a hard on for so long without release........every man is different so this may or may not happen....it happens to me, and I love the feeling........the pain will go away after a short period of time.....so don't be concerned if this happens.......once again....when you finally orgasm, the release can be epic....with sperm shooting and flowing like crazy.....