Period tease?

Sugar

So the past couple of months I’ve had a 3 day period and then a break of 24-48 hours and I mean not even a smidge of reddish brown, I put a tampon in coz I was sure it was just waiting for me to be unprepared and it came out white as a 90degree white wash. Then a day or two later I get the rest of my period. I’m assuming this isn’t normal... should I be worried? Coz right now I’m happy coz it means I only have a little period. Confused!