Is this OCD or?

Is it just me or does anyone else feel like if they don't do something a certain way something bad will happen. I don't know but there are somethings I have to do a certain way or else something bad or unfortunate will happen the next day or that day. My mother says I am weird for doing this but if I don't do these I keep being anxious that something will happen the next day and sometimes it actually does. What is this plz help.