A little worried

Hi everyone, so I have a question.

I had protected sex like a week ago but my partner decided to 💦 on my stomach 🙄 apparently because he wanted to try it😑. Either way, I realized the day after that we did it that I was on my ovulation window. I know I’m probably worrying about nothing but do you guys think that there’s a chance even though he didn’t 💦 inside me? Or am I just thinking too much about it?