Thyroid levels

I just had a miscarriage in December (but I have a healthy 2 year old so I know I can carry full term), so I asked to get my blood drawn for my hcg levels and was granted my wish. I went to get them done and they were at 1,198 as of yesterday and I was 4 weeks 6 days yesterday. But I also got some thyroid tests done due to a lump on my throat. Quick back story is that I had it when I was pregnant with my son (2 year old) and had tests done then too and had abnormal results but nothing that threatened the pregnancy.

Now I see my results and I’m wondering if I got luck with my first pregnancy and that my thyroid issues caused my miscarriage last year. My TSH levels were at 0.08 when normal range is 1.0-3.0.

Anyone else have this and had a healthy pregnancy. I’m just a worrier since my miscarriage and I’m trying to find comfort and peace in knowing things are ok. Thank you!