So, over the past couple of years I noted that a couple times a year I was in a lot of pain around ovulation. At first I thought it was my fibroid causing it, actually it was partially due to this pain that my fibroid was diagnosed. It it focalized on the right side and if I press on the area it feels worse. In the past I've noted that ibuprofen wouldn't help the pain at all.

When I had u/s to check it out after the fact and always they have seen that I have ovulated on the opposite side (which was opposite from my fibroid as well) and that there was some fluid in my cul de sac consistent with ovulation, but nothing else.

Last night I was in so much pain that I couldn't sleep and I finally broke down and took some percocet I had left over from my surgery in November. I fell asleep around 3am. This morning I still have dull pain, but it is a lot less intense then last night. I put a call into the REs office for advisement, it seems like I should at least ask since it was painful enough to keep me up.

Part of me wonders if it was an ovarian cyst rupturing and not just a regular follicle. I didn't have such a great ovulation last cycle -- hardly any EWCM, and dry generally -- I wonder if I didn't actually ovulate or else just had a cyst. Still, the u/s when I've had this pain before showed just a single ruptured follicle on the other side.

About Ovulation

The ovaries are full of thousands of eggs held in hormonal stasis in their "primordial follicle" which is a androgen dominant environment. This is the pool from which follicles are constantly being recruited into the maturation process which can take 3 months from early maturation up until the time of ovulation. Maturation of the egg/follicle requires changing the environment within the follicle from androgen dominant to estrogen dominant.

Not all eggs that start the maturation process are developed all the way that you might see them on an u/s prior to ovulation, these ones were lucky and their development synched up with the hormonal cycle perfectly so they could mature up to the point of ovulation.

Ovulation itself is a series of hormonal events the LH, a little progesterone to ripen the follicle, a drop in estrogen are some of these changes. Hormonal imbalances can interfere with this process, as evidenced by women with PCOS whose follicles don't properly mature.

So, if there are imbalances that are interfering with hormones on subtle levels it can throw off the follicular development and you might end up with an functional ovarian cyst, a partially ruptured follicle, no ovulation, or maybe delayed ovulation. If ovulation doesn't happen normally then there's a good chance that even if you release the egg then the follicle isn't going to change over as well into the corpus luteum, the structure that produces the progesterone which causes a lot of changes in our bodies that make it receptive to accept a tiny embryo (I have a lot of information about progesterone but that will have to be a different post if you are interested)

Here are some links about ovulation, you also might check out The Infertility Cure by Randine Lewis which has an interesting chinese medicine explanation of ovulation through the cycle phases that I enjoyed.

http://www.merck.com/mrkshared/mmanual/figures/234fig4.jsp

http://www.merck.com/mrkshared/mmanual/section18/chapter234/234a.jsp

http://www.emedicine.com/med/topic1340.htm