Please help!!

I'm almost 18 and had sex for the first time in about ten months on December 30th 2017 with a condom (I usually make the guy pull out with a condom anyway but he didn't)..

I was supposed to get my period on January 19th and haven't gotten it yet. I know I shouldn't be worrying this early but I have pretty bad anxiety and can't stop focusing on worst case scenario.

My anxiety has been at an all time high lately so I'm trying to convince myself that that's what is messing with my cycle but I can't stop thinking about the other possibility.

Please help!! Are there any ways I can try to either "make myself" get my period or soothe my nervousness? Any advice is much appreciated!!!