My doctors office doesn't care about chemical pregnancies

I had a miscarriage in March at 9 weeks .. since then I've had 2 chemical pregnancies .. positives that turn into negatives and ultimately get my period.. when I got my d&c; the doctor told me I had a notch in my uterus .. now I'm concerned that is why none of these are sticking ... every time I call the doctor to figure out what to do or look more into it they just ask why I tested before my missed period .. and say I shouldnt do that... beyond pissed .. do all offices think people should be completely oblivious of chemical pregnancies and possible issues?? 😡😡