Hook effect?

I dont know if this is the correct place to post but....Has anyone ever heard or experienced a hook effect with pregnancy tests? I took a test on 2/9 around 11am and received a positive test (first photo). I then took a test 2 days later with first morning urine and it showed a VVFL. I threw that test out and then on 2/14 I started bleeding but nothing as heavy as my regular period. I still felt pregnant so on tuesday 2/25 I took another test at 7pm. Again strong positive. So I took a test this morning with first morning urine and I have a VVFL. So I decided to test again once I got home (just before 5pm) and another strong line (last photo). I had spoken to my doctor on 2/14 and they just said they wanted me to keep my first appt on 3/3. But again.... has anyone experienced this and gone on to have a healthy baby.