Hi, maria,
I am not a Doctor, nor a Professional in this area.
According to this one site:
http://www.mtsinai.on.ca/ReproductiveBiology/drugs.htm
Superfact has little or no side effects., but you really do need to check with your Doctor, and see what he/she has to say about it.
If you wish to read about it at the site above, then at the site, scroll down about 1/4 the way to GnRu (Superfact........).
It's about the only site I could find on the subject.
I do wish you the best, and again, please ask your Doctor.