Cum inside of me?

Beanie

When using the withdrawal method, how can you tell if he went inside of you a little or not? Most of it was in a towel when he pulled out, but I think some of it went inside of me. How Can I tell? I know that it was really warm and I was soaking wet down there, and there was a ton a of “discharge” which may have been mine. Is there a way for me to tell if he did or not?