Am I supposed to see lines at 12 dpo???

Autumn • 🌈✨ PREGNANT WITH RAINBOW BB👰🏼Married 8.5.2017🤵🏻 Miscarried with our first pregnancy on 8.5.2018. Age 23

Am I supposed to see lines at 12 days past ovulation?? I always see girls with developing lines at 12 days past ovulation...