So embarrassed

So I live with my grandma we don’t get along very well sometimes I also live with my husband we got married recently so he lives with us so a few days ago one night we had the best sex then the next morning I was still naked so we had morning sex and I don’t know my grandma was in the kitchen listening I was screaming and yelling saying I’m going to cum and he said I think she is listening I said no I didn’t believe him she was so quiet then I went out to the kitchen to go to the bathroom and she was standing there she didn’t say anything she just looked at me with a mad face she always has a mad face sometimes she talks to me good tho i still feel embarrassed because I’m sure she heard me she didn’t say anything but I still feel bad