Hi mama! Based sa timeline mo, if you got your period on August 31 after your last deed on August 12, it's very unlikely you're pregnant from that encounter, pero honestly, the best person to confirm this is your OB since they can check properly and also help you decide about stopping your pills safely. A few of us moms noticed na kahit na get our period while on pills, sometimes mas maayos mag-consult pa din especially if may plans kang mag-stop ng contraception, kasi dapat may proper transition para hindi mag-surprise pregnancy later, especially once your hubby's back home na ulet!