Ovulation bleeding

I have been tracking using opks and got a positive on Friday. I started to bleed during sex on Friday but it stopped and then again on Saturday but this time it hasn't stopped and i have been bleeding through the night and all day today. I have had ovulation bleeding before but not like this. My sides are also sore and I'm very tired. Should I be worried? Can it be a early period even though I got a LH peak? Very confused