Is it safe????

I’ve been officially on the pill for a whole month. Never missed a pill, maybe I was late a couple of minutes for some days, or an hour late for administration less than two days (finals week.. college sucks) during this first month, but I experienced a very, very light yet long period (1 week long!) is it safe to finally have unprotected sex and let my bf finish in me? Or should I wait this whole month again or just wait until I’m done with my first week for this second pack? My dr told me it would be effective against pregnancy after the first month, but I just want to be safe about having unprotected sex.. FINALLY!