tsh level increase when pregnant

Hey everyone,

I have had diagnosed hypothyroidism for about 2 years now (but I prob have had it most of life undiagnosed). My husband and I have recently started TTC. My levels are under control and have been for a few months now. I know we need to confirm pregnancy as soon as possible, but how fast did your tsh levels go up after finding out you were pregnant? I would love some examples. So glad I found this group. Thank you for any help :)