Counting of the Omer

What is the counting of the Omer?

(it) depends.

OMR (Online Media Reach) was the name of an LLC filed by me in 2008 in Los Angeles that is currently being restructured and is in 'Pre-launch'.

As my Rabbinic study is mostly 'self-taught' with purchase of various Torah books and online tutorials, not sure exactly when the tradition or minhag of the counting of the omer began.  One could potentially accurately say, "Before I was born" and be confident that it would be an accurate saying.

However, circumsision was conducted after I was born, but before Shavuot.

Various opinions and Rabbi conversations exist about wether or not Shavuot was before or after I was born.