Since you had a tubal (ligation I assume) 12 years ago, I doubt pregnancy is an issue. When pregnancy does rarely occur following sterilization, it is usually within the first year or two. The longer the time is after, the less likely it is that you had a failed tubal.
It is impossible to say every side effect of the steroids - each person is unique in this and it could be that you are having an unusual reaction. It could be just hormonal fluctuation and the bloating could be even from something else, like bowel trouble of some sort - or it could be a side effect. It would be anyone's guess. If the soreness continues you should talk to your doctor about it but sometimes it just happens and is not problematic except that it is uncomfortable.
The answers in online forums are for information only and are not intended to substitute for medical advice and care. Please see your personal health care provider for further evaluation of your individual case.
Debbie Miller, RN