OPKs and Ovulation

Maggi

Is it possible to ovulate on CD 9/10? My period was only 4 days long and didn’t wanna wait just in case I did ovulate before the predicted time, since this is only my second month trying and logging so it’s not as accurate as it could be. My pink pad app updated to where I ended up ovulating on the day that I ended up having an LH surge. I know every one is different but, I guess I just need a second opinion.