My period is being weird!πŸ˜¬πŸ˜“πŸ˜§

Holly

Usually my period blood is a deep red with a medium to heavy flow. But this time, my period skipped a month and now the blood is a really dark reddish brown and my flow's really light, spotting at times. Also I've never had sex with a dude, so can't be pregnant. What is going on???