Chemotherapy meds are NOT ADVISED to be anywhere remotely close to a pregnant women. This is because they have a high risk of mutating a developing fetus. In all likelihood this would cause her to miscarry but the risk on her would be the same as if she were not with child.
ok.... not terminally yet she starts radiation in less than a month.. will that affect her if she is pregnant?
if shes on the pill its unlikely she'll b pregnant unless shes missed any the there will be a possibility, is your girlfriend terminaly ill and would she want a child whilst going through a difficult time