Late period

I hadn’t seen my bf in April and May due to the virus. We started seeing each other this month and had sex w/ condoms on the 15th & 16th (after my expected ovulation + fertile week). It is the 26th now and I am a few days late for my period. Could I be pregnant already and thats why I am late? I will take a test if I completely miss but my period is on time 99% of the time. PCOS is also common in my family, so I am not sure if this may be causing the delay.