Is it possible to be over 10-12 weeks?

Elysia • Baby girl born Feb 2019!! 👶💖 followed by 3 angel babies 👼

So I have no clue how far along I am as I have had no periods since having my baby back in feb but got positive test last weekend which haven't gotten darker and to my husband and peeps on here they haven't gotten lighter either....

So i know that hcg levels off after a certain time in pregnancy so is it possible i could be further along?

Midwives have put me as 6 weeks due to me telling them tests are light so I wont get a scan for another 6-7 weeks or so and I'm worrying it's a chemical if I'm super early

Weds morning: