An awkward conversation with his mum....

Um so I’ve been with my bf for 4 months I’m 16 he’s 15 (a lil baby ik😂) and his mum cleaned yo his room and found condom wrappers down the side of his bed. My bf said some lies and she was fine but still had her suspicions. So like she cane in his room last night and I was there too and she asked if we were having sex... my bf owned up and said yes and although she was just asking to make sure we were being safe about it it was still major awkward and like the conversation kept running through my mind. I just want to know how to get past the awkwardness I feel😂 I mean we talked this morning but in my head it was just like omg she knows I fuck her son😂 Any advice...?