I think you might want to give your body time to adjust to the HRT before leaping into testosterone. I’m frankly surprised your doctor so readily suggested you go there. I’ve been on bio identical HRT for 14 months now and at the six month follow up I asked my GYN about testosterone and he urged me to wait and see how I felt after more time on HRT. Testosterone can cause hair growth but it can also cause irreversible deepening of the voice and other side effects that are quite unpleasant for women. I would go there only as a last resort.