Condom piece in me

So I had sex with this guy yesterday. During sex I heard a pop noise towards the end of us having sex and didn’t think nothing about it. I went to use the bathroom today I saw the tip piece of the condom. I assume it was in me overnight.

I have taken my birth control everyday for 5 months. I was also on my period the day before we had sex. As far as I know he did not cum. Could I be pregnant? Should I be worried?