Just curious-when a woman finds out she is pregnant-Does she reflect back to what day it would have been- how the sex was- what positions she was put in-number of orgasms she had that day/night -number of orgasms her partner had -etc etc=and does she intuitvely feel she may have gotten pregnant?
To answer you last question first, a lot of women do know when they get pregnant-- either an intuitive thing or some deductive reasoning. Most women that are trying to conceive know their cycles very well and have sex at the optimal time for conception. Also, there are positions that are better for conception... and after you have sex elevating your bottom on pillows helps to get the sperm in the right place. Orgasm does seem to increase the chance of getting pregnant, or so I've read.
It's very different if you're not actively trying, which I'm not as sure about since I only know my experience. I don't know that I particularly remember most sex acts a month or more out unless they are extremely good or the only time I've been laid in a long time, so the gory details may or may not stick in your head.
In my case we were trying to conceive and honestly I remember all the damn ovulation kit tests and that having sex became a chore... But I don't know exactly when I conceived-- it could have been after I trashed the ovulation kit and we just went at it like monkeys. A friend of mine knows to the day because it was the only time they had done it that month.