Thread: Beginner C problem

Code:

int main() {
    double firstInputCheck = 0;
    double MoneyEachMonth;
    char firstInputNewLine = '?';
    
    while (true) {
        if (firstInputCheck == 0 || firstInputNewLine != '\n' ) {
            printf("Enter how much money you will be putting towards loans/retirement each month: ");
            firstInputCheck = scanf(" %lf", &MoneyEachMonth);
            scanf("%c", &firstInputNewLine);
        } else {
            break;
        }
    }
}

When I try to put in an incorrect input (like bob) it proceeds to print the printf statement 3 times instead of just once.