posted January 10, 2015 04:52 AM            

So, one of the first things you need to do is assign the proper significators. Saturn is for you, your question is about the possibility of being pregnant and we check the 5th house ruler, Venus. We look at Moon for the course of events especially affecting you personally and possibly as a second significator for you (but I prefer not to do that). Yes, Venus is in your 1st house indeed, separating from you by 5 degrees - did the intercourse happen 5 days prior to raising the chart?
I do not think you are pregnant, Venus and Saturn are separating, both Venus and Moon are in barren signs, Moon being in the 8th house which is unfortunate and Moon is applying (this being its last aspect - the outcome) to oppose Mars, a barren planet in a barren sign. You and he might also go into some sort of argument (Mars rules your 3rd house).

I do not view this chart as paramount for the reception matter. Your friend is secondary to the question, which was if you are pregnant, not for example "how would a potential pregnancy affect my relationship with X?". Phrasing the question is very important, so we don't look at him too much. Even if we were to look at him, I am not sure he should be Moon because from what I understand you are not dating or in a relationship (however, if that is your secret hope or purpose, we could give him the 7th ruler). He could be ruler of the 8th or the 11th since you said this is a friend.

Let me know if you have more questions.