Yes I'm on thyroxine for life now. This had no issues with any of my pregnancies they just did regular blood tests to check my levels and each pregnancy I've just had to increase my thyroxine intake and then reduce post birth. prior to my thyroidectomy I was on neomercizole for 12 months.

Don't be too hard on yourself and think what if this & that... Just get yourself sorted out so you feel good and have a normal thyroid and then see how TTC goes.

It took me 3/12 to fall pregnant only because I was a bit woozy after surgery & couldn't talk properly for 2 weeks. So we didn't try that first month so only really 2 months.

Take care - feel free to ask questions if it helps

Good luck