I am not a doctor. From what I can gather from your previous posts, you have provided only some details about your HBV infection. Let me recap:
1. You were put on TDF in March 2016, when you hbvdna was 2800 iu/ml, LFTS normal; in 2014, your hbvdna was 133 iu/ml.
2. You became pregnant whilst on TDF, but very sadly at week 22, you had a miscarriage.
3. You have depression and constant worry about your losing your kidney due to TDF
4. Now you have swelling on your face.
5. You want to stop TDF, maybe try IFN, also also you want to have an baby.
From your history, you were put on TDF in March 2016. Were you on any treatment before that?
You are right, normally with hbvdna at 2800 iu/ml and normal ALT, you can observe before starting treatment, unless (just guessing here)
1. You were on other antiviral, reducing your viral load to 133, then a rise to 2800 iu/ml was detected. Your doctor suspected drug resistance and therefore switching to TDF; or
2. You were inactive HBeAg negative, with low hbvdna, then your hbvdna increased to 2800 iu/ml. Fearing that you are developing chronic HBeAg negative Hepatitis, you doctor decided to treat.
From clinical studies, TDF is safe. Some patients will experience a decrease in Kidney functions, but will then stabilize without further deterioration in Kidney function. Face swelling is not a commonly known side effect of TDF, however it should be investigated to determine the cause. Depression is common after pregnancy and in HBF patients, it should be treated.
IFN is for at least 48 weeks, it can have very serious side effects. You cannot fall pregnant until at least 6 months after IFN treatment. Whether IFN treatment will be successful, depends on many factors which she have not stated.
As for stopping TDF satfely, it again depends on many factors: your
HBVDNA, ALT, serum HBsAg quantity, and also the state of your liver (degree of fibrosis).
Best