Went and got my blood drawn doc said you can't get preggo while bf

Ttcbbnum3
Just got back from getting my blood drawn still no sign of af what so ever (last af 3/13/ )nipples are still gonna fall off and um my tests are still faint. If your wondering why they are drawing blood its because my pregnancy test at the doctors was negative and the doctor told me that there tests were "laboratory grade" so idk if that's why my test line wouldn't come up . number one the nurse said my insurance wouldn't cover blood work he kept saying that! come to find out YES it does another thing the doctor said you can't get pregnant while breastfeeding under 5months 😐 ill wait. Is she serious . those are lies . and bow im wondering if they waited long enough to read my test ? Like the doctor said so much false things she didnt even have my chart I had to go get her twice after waiting for a hour it was just a headache . so im waiting on my results . ill post what my pics have Ben looking like and blah blah but it is what it is .