Cervical mucas symptoms and conditions

I have a herniated disc L5S1. I had my first of six injections in September of 2006. for three months I had problems with my periods. After my third shot my husband and I decided to start trying to get pregnant. We wanted to try earlier but my back pain stopped us from trying. Ever since I received the first shot I have had problems with fertility. I do not get the cervical mucas anymore. This mucas keeps the sperm alive and helps them travel to the egg. I also had an ectopic pregnancy a year ago in April of 2007. I know that Kenalog has had something to do with both of these issues. I have been trying to get pregnant again for about 9 months with no sucess. My husband has been checked out so we know that it is not him. I have a son so I know that everything was fine before these shots. When I talk to my doctor about my problems they tell me it is not the Kenalog because it does not stay in your system for that long. I say that this is a steriod and you always here how bad they are and the horrible side effects. I know that this stuff is the reason that I cannot get pregnant and it is probably what caused the ectopic pregnancy that almost killed me.