is this normal??

so i have a confession, idk if you ladies can relate. me and my bf always use a condom when having sex. BUT when i’m on top i can never tell when he cums??? like it’s pretty easy to tell when he’s the one doing the work, but when i’m in control it’s really difficult to tell. i don’t want it to get awkward if i keep going after hes, you know, done. am i the only one?