You do not have enough tests done to really be sure but. If I took 200 mg of Test Cypionate in one shot my E2 would be through the roof Three weeks between shot is crazy your T levels were far lower than when you started by then and E2 was probably pretty high. Testosterone Cypionate has a half life of 8days. In two weeks you are close to zero. And unless you like riding a hormonal roller coaster one a week is the longest you should go, with twice a week being better.
You really need to educate your doctor or
Read this stuff