I had a really bad ringimg noise in my ear after rock concert day bfore yeaterday now it barely noticeable, will it go away completely?

It will go away within the next few days. It happens. I have absolutely the same thing and I can barely hear anything after going to a party/concert. It's actually quite harmful to your ears, by the way.

It will likely go away.

However, it does mean you've damaged your hearing.

You really should start wearing hearing protection for future concerts lest It start to permanently damage your hearing or lead to tinnitus.

It just means you're pregnant