can't stop worrying!!

olivia

my boyfriend and i always use a condom and pull out method when having sex but my period is late by 8 days now and i'm super freaked out by it since my cycle is usually regular. i'm a full time college student under a lot of stress right now and i know stress can delay your period but could it be delayed by this much?? i took 2 pregnancy tests at home and they were both negative please help me