Halocho #1080 - Don't forget to count the Omer

If you forget to count the Omer at night, then you should count during the next day - but without a Bracha. You can then continue counting (at night) as usual with a Bracha.

If you forgot to count during the night as well as the following day, then you should still continue counting the Omer each night, but you may no longer make the Bracha.

If you're unsure if you counted the previous night, you may continue counting with a Bracha.

Source: Kitzur Shulchan Aruch 120:2

- Danny
Monday, 5 Iyar 5773 - 20th day of the Omer