Implantation or period?

Ma
Hey guys, I'm cycle day 23 so about 8 dpo. I've had light brown spotting since yesterday (cycle day 7) a little got on my underwear but it's light brown when I wipe. Today on cycle day 8, in the afternoon when I wiped it was sticky bright red blood (looks like cm mixed with blood) but only a small amount when I wiped. Now it later in the evening and it went back to being rlly light brown. Nothing on the pad except a spot of brown. Since 2 days ago I've been experiencing pulling and poking on the left side of my abdomen and today on the right and left side. What is going on? My cycles are usually 30 days so cycle day 23 is way too early for my period. I had a chemical pregnancy in March.