No cycle 😞

Salli

Im 39 now and from mid October to a week ago no cycle 😪 it’s only a little brown discharge when I wipe. The doctor said not pregnant when I was checked in October everything looked great and healthy for me to get pregnant and in August September and October it was only a little brownish discharge. Doctor said everything looks normal I did test for tumors cysts and abnormalities and came back all clean with no issues....... I’m at a loss at what could be causing this issue other than me stressing about getting pregnant