Scared

A❤️

I have irregular periods for a couple months now. However there was a slip up on August 1st. Now my period in July was on the 21st. I had a day bleeding on August 17th. Should I be concerned if I'm pregnant? Or could it possibly be just another switch in days. My 1 day bleeding was very dark in color. & started in a brown clump. Sorry if TMI we're all girls here lol . Please help xx ♥️