My father in law was a musician. He explained that other than Lag Ba'Omer and beginning 3 days before Shavuot, there were no weddings at all during the Omer. Even though, there are two versions of the ...
Rivivos Efraim Volume 2 page 266 in discussing whether one may eat roasted meat on the evening after Pesach Sheni concludes as follows. ופוק חזי מאי עמא דבר, שעושים חתונות מפוארות באותו לילה ...