when should i be expecting my period?

I started the pill June 21st and i’ve been strict on taking it at the same time every single day, I took it about 35-40 mins early on the 30th because I was going to a concert but I’ve heard it’s alright if it’s within the hour? Anyways, I lost my v-card on Tuesday and we used a condom but I’m still kinda paranoid! I barely started my placebo pills yesterday but I’m wondering is it normal to not get it the first placebo pill day ? and should I be pretty safe pregnancy wise? My pill info packet says that after 7 days after starting I won’t need to use a backup method.