im overthinking so much, please help!

Does white thick discharge means im pregnant? I'm on the bc pills and i take them regularly but i have been getting this since yesterday and im kinda scare tbh. My bf has never ejaculated inside of me. Maybe its me, im just so scare of getting pregnant. (Im 18 btw) should i get a pregnancy test? My placebo pills start in two more days, should i wait to see if my period comes?