There are chances?

I had sex with my boyfriend this tuesday (9th) and we start with out a condom like about 5 seconds and then we use a condom, finally we did it again with out a condom but not even 30 seconds, it was less! And he didnt cum inside me, mi period is coming the 17th but i am all stressed and worried because they say sometimes you could get pregnant with the pre-cum but my boyfriend doesnt have pre-cum, are chances to get pregnant?😭😭😭