Hello, I Am 25 And I Have Been Taking A

Hello,

I am 25 and I have been taking a daily birth control at the same time for the last 5 years, and typically never miss a dose. I am also hypothyroid and have irregular cycles despite treatment. I missed a BC dose, and didn't realize it for 24 hours when it was time for my next one, at which time I took two pills. Unfortunately, the same night I missed a dose, my husband and I had a "date night". Now, nearly a week after, I have not had a period, but the latest (at home) pregnancy test is negative. My plans are to wait another week and take another test. My question; could my thyroid levels be to blame? Or do I have a decent likelihood of being pregnant?

Thank you