Discharge before period, help!!😧


I have a pretty regular period and my cycle length is usualy 28-30 days ( or sometimes give 2 days more). Usually, It’s not that I give it so much attention before it comes, but this time I’ve been waiting so much for my period to come and have been looking after everything that’s coming out of my vagina🙄. I’m on cycle day 28, and I’m noticing that I’m having some discharge (when I wipe ) and it’s kind of yellowish. I think I remember it happening even times before and it getting darker till the brown shade and then coming up in red as a normal blood menstrual flow. But this time I’m kind of panicking. Is it normal??? Does it happen to someone else or is it just me ??