Welcome to HCM
We understand your concerns. Please tell your girl friend not to worry much. You, yourself is dam su8re that your girl friend cannot become pregnnt, and you says that she is complaining about some weird feelings in her stomach. In fact, She may not even have such weird sensations even if she is pregnant, for sure. Therefore, you have to rethink. The trouble you are mentioning about urination could be due to some inflamation of infetion of the urinary tract
. This inflammation is possible after having sexual intercourse. You should ask her to consult a gyncologist for further advice on urinary tract inflammation, not pregnancy
Hope this answers your query. Available for further clarifications.