hello,
so about 4 months ago i had protected sex with a lady friend, (even though we were both intoxicated at the time i had the bearings to use protection, but since we were intoxicated i cant say for certain how"protected" it was for the entire time-but im mostly certain the condom remained on for the duration of our intercourse)... SO recently i have been worrying that"what if she is pregnant from our encounter?" Even though this happened nearly 4 months ago i know some girls dont know they are preg for a while after conception. so im wondering if theres any real possibility that she could be preg by me and just not know about it after 4 months...id hate to find out shes preg anytime now and then have to worry about if i'm the father or not, i have been experiencing extreme anxiety lately because of this, so any real life situations or expert advice would really help alleviate some of this constant worry. i know i may be paranoid, and most guys prob would never even think twice about something like this, but as mentioned b4, i have GAD(general anxiety disorder) and this seems to be feeding it almost to the point of compulsiveness.

additional info:
-i know sometimes heavier women can go much longer without knowing they are preg, but this girl is skinny.
-it has been 4 months almost to the day since our encounter. i have talked to her since(shes still a friend of mine) and she has made no mention of being pregnant or of any peculiar symptoms.