Your account is showing not be eligible for Competitive Play yet (its at XP level 22), but if you just started and have not logged off of Overwatch, then I would judge this to be normal. Brand new players like yourself is very likely to see large amount of SR gains and losses as you begin to establish your true skill level in the game. This is normal and nothing to be concerned about. To learn more about how Competitive SR adjustments work please check out this guide:
Please note, as a player I don’t mind providing any knowledge I have about how Competitive Play works, but know that in the technical support forum. Detailed answers for questions like this cannot be provided by Blizzard Support Agents. So if you have more questions, be sure to post in the Competitive Discussion forum instead.