Ummmm should I be scared

I’ve been taking my birth control for three weeks now everyday at 3:pm

Me n my boyfriend just had sex last night with no condom he didn’t nut n me but he may have had Precum....its 3.... and I forgot ny bc at home if I take it later at night when i go home will I still be ok?i have 2 pills left untill I take my white pills I think my period begins thn I’m new to this birth control