Major question!!!

Hey mommies and mommy's to be have anybody NIPT test come back inconclusive and you re take the test and everything comes back good this is my first time at this clinic I usually go to the hospital to do my prenatal care cause that would be where I'm gonna give birth at this time I did a clinic but they only went up to 13 weeks I did my gender test at 12 weeks and 5 days so almost 13 weeks and they women said the lab was real picky on how u draw the blood the amount they want and etc which is new to me I didn't the NIPT test with my daughter and everything was fine when they draw blood regularly ugh I'm an over think and at time worrier they said it didn't have nothing to do with me or baby sometimes it can be the lab or the blood sample I started doing prenatal care at the hospital I choose to give birth so I'm seeing if I should let them do it or go back to my clinic and do the retest