Is this a BFP?

Michel • Married 4-25-14, son arrived 7/6/15, daughter arrived 3/15/18!
​I can't tell if it's positive or not. This is a test from my work (Planned Parenthood), and we have had this problem with these tests with patients too (is it a faint positive or just a strong shadow line, etc). Normally I have a coworker look over my shoulder for a second opinion, but I took this test at home. Can anybody else tell?