My girl is 7 months old and she is basically the same as yours, 1-2 accidents a week.
I get 1-2 a month still that she does with me awake and nearby, then run to her crate and be totally submissive (fastest downs in her cage, which she is normally slow to listen to down in her cage for some reason). I do think the issue is largely on my part that when I take her out, and then she wants to sunbathe and I have to work I bring her in too quick, and then my better half not taking her out enough when I'm asleep (we kinda do shifts with her as our sleeping schedule overlaps less than half, and peeing on her shift is MOST of the accidents, haha). My girl only has access to outside when we take her out (she never goes out unsupervised, or have a doggy door, etc).
I agree with
@Doberman Gang that 7 months is old and occasional accidents are normal. Like, my dogs most recent accident was today, with over a week without, but it was when she had her "pampers" taken off inside the house, and right after she did it IN her pampers outside the house (confusion, and pampers I mean for her blood, she is in heat).
My sweet heart, Asul (RIP), was maybe slightly ahead, but after 1-2 years she would only have an accident maybe 1-2x a year at most, and only when we really neglected her BUT she would pee when super exited (in combination with the but shaking faster than her tail, haha). Anyways, so it does get better with time.
WOW, I'm glad I don't have carpet (all tile, hehehe).