Am I taking my meds correctly? Please help!

Hi there. I have been on 50mcg of levothyroxine for about 6 weeks. I am disappointed to find out today that tsh actually went up slightly (from about 4.5 to 4.8). I take my meds on an empty stomach in the morning- about 5-6am with a sip of water. I have coffee an hour later. However I don’t think typically have any food until lunch as I am not a breakfast person at all and I feel fine with the coffee. Do you think I might fasting too long? I’m waiting to hear from my doc what they think. Thanks!