Hi,
Noted your short history about having unprotected sex with girlfriend, ejaculated on couch and panties, she wiped cleaned with salt and water solution but now worried whether
pregnancy is possible or not.
First of all, calculate her periods to find out whether the sex was during her safe period or not. if the sex happened during safe period then the chances of pregnancy are not there.
Since the ejaculation was out of vagina hence having pregnancy is rarely possible.
It is possible only if there is insemination during fertile period of hers that is during ovulation and if the precum had sperms.
You can wait and watch whether the next period is missed or not.
If the period is on time and normal then there is no pregnancy for sure.
If the periods are delayed by 10 days then go for urine pregnancy test and consult her gynecologist for proper evaluation and management if needed.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. T. Chandrakant, General Surgeon