Bubble bath

My bf came on my stomach & wiped most of it off, I ran a bubble bath & washed my hands with antibac but forgot to wash my stomach.

I’m my bubble bath I put bath salts and a bath soak. My bath water was pretty warm, maybe around 37/38°c

I got into the bath 10 mins later

There was some dried cum on my stomach

When I realised about 30 seconds in I jumped out and washed my stomach before getting back in.

It sounds ridiculous to even ask but what is the likelihood of me being pregnant from this? Would the sperm have dried and died by then?

Please don’t answer rudely, I just want some reassurance. Thanks.