First of all, I'm sorry to hear of your losses.
I had three miscarriages before my kids and I'm working on a book on miscarriages right now so have researched this a little bit. The biggest "con" of using over the counter progesterone creams is that they are not tested for absorption rates. Dosing can be a challenge. You would not want to be taking too much progesterone any more than you would want to be taking too little.
The "pro" is that it can be hard to find a doctor willing to test your progesterone level and prescribe the supplements, so over the counter creams have the benefit of being easy to obtain on your own.
Much of the medical profession believes that progesterone supplements have no benefit in preventing miscarriages, which is what a recent Cochrane Review found, but it also found that progesterone might have value for women who have had recurrent miscarriages and that more trials were needed. (http://www.update-software.com/ABSTRACTS/AB003511.htm) Some people think that the supplements have not been adequately tested for safety, which may be a concern
If you have a medical practitioner willing to give you a prescription for the supplements and then check your levels to make sure it's in the right range, I'd go that route over the creams if you can. (I took progesterone with both pregnancies and I do believe it played a role in getting me to stop miscarrying.) And if you do go with the over the counter creams, obviously be sure to get it from a reputable source that guarantees that the product isn't going to be contaminated with pollutants, etc.
Good luck.
I know it's awful enough to go through once much less multiple times.

I had three miscarriages before my kids and I'm working on a book on miscarriages right now so have researched this a little bit. The biggest "con" of using over the counter progesterone creams is that they are not tested for absorption rates. Dosing can be a challenge. You would not want to be taking too much progesterone any more than you would want to be taking too little.
The "pro" is that it can be hard to find a doctor willing to test your progesterone level and prescribe the supplements, so over the counter creams have the benefit of being easy to obtain on your own.
Much of the medical profession believes that progesterone supplements have no benefit in preventing miscarriages, which is what a recent Cochrane Review found, but it also found that progesterone might have value for women who have had recurrent miscarriages and that more trials were needed. (http://www.update-software.com/ABSTRACTS/AB003511.htm) Some people think that the supplements have not been adequately tested for safety, which may be a concern
If you have a medical practitioner willing to give you a prescription for the supplements and then check your levels to make sure it's in the right range, I'd go that route over the creams if you can. (I took progesterone with both pregnancies and I do believe it played a role in getting me to stop miscarrying.) And if you do go with the over the counter creams, obviously be sure to get it from a reputable source that guarantees that the product isn't going to be contaminated with pollutants, etc.
Good luck.
