Anyone fall pregnant on the implant ?

I had my son im February, and went on the implant in April (i was always on the pill before suited me perfectly and i fell pregnant straight away when i came off it!) i was scared of forgetting my pill so went for the implant! Past couple of weeks i have been falling asleep and feeling quite sensitive to smells symptoms i had with my son! So i took a test the cheap dip ones from ebay and got a faint positive Ive since done about another 10 of these and all very faint positive! But did a frer and negative 🤷🏻‍♀️ anyone else has a similar situation? Im freaking out slightly x