As we know, weddings are not held during parts of the 'Omer. There are some different customs concerning this. Ashkenazim have two basic customs. One, where weddings are not permitted from Pesah, and another, where they are permitted up to Rosh Hodesh Iyyar, but not after that. Sefardim do not hold weddings from Pesah.
On Lagh La'Omer (during the day of the thirty third day of the 'Omer), all Ashkenazim permit weddings. Sefaradim keep the laws of the 'Omer up to and including the thirty third day of the 'Omer, and from the thirty fourth day on, (Lad), the restrictions are removed.
When it comes to weddings, however, although there are those who hold they are permitted from the thirty fourth day on, the Pesaq (ruling) of the Ben Ish Hai (Hakham Yoseph Hayyim, 'a"h), is that weddings are permitted for Sefaradim on Lagh La'Omer itself (the thirty third day of the 'Omer), and every day thereafter.
(See Orah Hayyim Haggadah, 'Inyani Hol Hammo'ed, Oth Kaf Heh)
