I'm still wondering

So about a year and ahalf I had a miscarriage . Ever since that I haven't been able to get pregnant, but yesterday I had sex with my fiancé and he came inside but even though he had came he stayed for like 10 -20 seconds inside me we never use condoms cause we're gonna get married and plus we only do it with eachother but I'm still wondering if after yesterday can I be pregnant or maybe not 🤔