Fertile Window?

So my boyfriend stayed the night with me last sunday night until monday morning. We had sex twice on sunday and once on monday. We only had two condoms with us. My fertile window started on monday. We used the condoms both times on sunday but on monday he just pulled out. My cycle thing is telling me there’s a high chance I’m pregnant? Should I be worried? I know pulling out isn’t a great method but we both know he pulled out before cumming. The cycle thing is just making me really anxious. Any like comforting words? Haha ugh