Could it be something serious!?😧😵

My cycle is usually 45 days. My next period should've been on April the 1st and I started ovulation on the 17th of march, on the 20th I started spotting a little with my ovulation and didn't think anything of it since I've had spotting with ovulation before. It's now been 4 days of spotting and some of those days have been a panty liner full of "spotting" some days it's been dark brown and some times it's bright pink. Has anyone else had this happen? Could it be my period?