Provera can also induce thrombosis, same as Estroidal and/or Testosterone. So, IF you do decide take both that and T simultaneously, I'd really have to recommend you to consider also taking 81mg aspirin (as in real aspirin) - just in case. About $15 for a year's worth at Walgreens (the enteric coated ones).
Otherwise, this should stop within six months after your dosage volume has been fine-tuned (the sooner that's achieved the sooner this will cease). If it doesn't, it's not right and/or something else is going on.
You're about due for Total Testosterone AND Estroidal level check. If your doc doesn't bring it up at your next appointment, you should; insist on them being done if you must. If your dosage volume is either too low or too high, that would be why this isn't stopping yet. And it would be better to correct it by either raising or lowering your dosage than by stacking on another HRT; doubling down on your clotting risk, unnecessarily.