The Extremely Fertile Window ?

Are you still in the extremely fertile window at 7 weeks PP ? My fiancé & I DTD tonight. He asked to just put it in for a moment without a condom because he missed how it felt. I agreed because I missed how it felt too & now I’m really kicking myself in the ass about it. It really was an in & out thing. He put it in, stayed still for maybe 5 seconds, pulled out, put the condom on & then we DTD as we normally would. I know there’s always a chance of pregnancy when you have unprotected sex & that this is a really stupid question but what are the odds if any ? I feel really freaking stupid for agreeing to it now. 🤦🏻‍♀️