Late period but had protected sex. we used the extra safe condom

I'm 19 years old now, me and my boyfriend recently started having sex. I skipped my period the month before I got my period on the  6th of September to 9th of September. I broke my virginity on the 16 September. We used extra safe condom. Where he cum twice but pulled out,we had 3 rounds.i didn't bleed after breaking my virginity. I had to get my period on the 4th October. I had sex again on the 7th of October where I was supposed to be on my period. Same thing again used extra safe condom he pulled out when he cum twice again, had 4 rounds. Today I'm 21 days late , I didn't get any pragancy symptoms at all. I'm scared and still young I need answers?