
and

to HysterSisters!
I'm glad you joined so you have a place to connect with women who have lots of support, experiences and information to share. You're in good company!
I don't have any experience using the exact estrogen your doctor has prescribed, which is estradiol valerate, but hopefully someone who has will be along soon to reply.

I do use Vivelle Dot for my estrogen. It's bio-identical estradiol--one of three estrogens produced by the ovaries.
Your situation is trickier because you are dealing with an endometriosis diagnosis. There is a chance that you could continue to have problems with endometriosis even after surgery and since estrogen feeds endometriosis, some doctors will recommend waiting a while to start taking estrogen in the hopes of having any remaining endometriosis die off. Other doctors will prescribe progesterone (or progestin, a synthetic progesterone) along with the estrogen because it can counteract the effect that estrogen has on endometriosis. It's worth asking your doctor about.

You'll find a wealth of hormone information in this link to the
Hormone Jungle Articles.
You will find as you read more on this site that there's not one hormone therapy that fits well for everyone. What works well for some of us isn't right at all for others. It's a trial and error process figuring out which is best, so don't be afraid to try something (if that's your wish) because you can always change to something else if the first thing you try isn't helping. It is important to give each hormone therapy time to work because it takes time for any of them to reach optimal levels and, in your case, time for hormone levels to even out since you're early in recovery.
If you have any recovery concerns as you heal from your oophorectomy, you're welcome to post a new thread over on the
Separate Surgeries message board. If you'd like to connect with women who are dealing with endometriosis both pre- and post-op, feel welcome to visit the
Endometriosis Support message board.
I hope this helps! Best wishes for your recovery.