Could I get pregnant on my 7 days in on my pill ?

Grace

So I was with my boyfriend last weekend and we had sex but we didn’t use a condom but I’m on the pill and I was on my “period “ but it had finished cause I only go for a few days but I only had one sugar pill while I was away the rest were the normal pill could I get pregnant 😬 I’m only 16 and mum and dad would kill me if they found out helllp