So, that's almost a normal cycle length. 24 to 28 days is normal and yours was 22 days. You probably got your period a little early. Being irregular happens once in a while. It's not really two periods in a month as your cycle doesn't follow an annual calendar, it follows number of days and months have different numbers of days in it. You can always get a period/cycle tracking app so you can see days. Anyway, see if this is a one off thing. I had my period week early a few months ago and then the next cycle it was back to around the normal number of days for me. good luck