So Last Night I Was With My Girlfriend And Was
There seems nothing to worry, very likely exhaustion is the cause
Detailed Answer:
Hello and welcome to "Ask a Doctor" service.
This incident being the first time and after a very tiring day, with little sleep, very likely is nothing to worry. Especially if you are healthy, do not suffer of chronic conditions like diabetes and do not use medications which might affect the erections. It is good you do not drink or use drugs as these might affect the function.
If you do suffer from certain conditions or take any medications than this is very important information for us to know so we can determine if there is a relation between them and erections.
To conclude I would say that at the moment you should not worry, it is very unlikely this will repeat. On the other hand you need to relax because stressing about it might make it worse (psychological factors are very common in erection problems).
In case the episode repeats it is still very likely it is not serious, but very likely due to physical exhaustion or stress; still having a check with your doctor will help confirm this and give you a peace of mind as well.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Antoneta Zotaj,
General & Family Physician