A woman can suspect something if she has 2 or more pregnancy tests that conclude as negative, but I wouldn't neccesarily assume that you could be sterile right away. Talk to your doctor and you can get tested.
You'll know most of the time if a woman is attracted to you. The main thing is, all women are different. They'll give you hints upfront especially coming from shy women, they're there. Now, there...
Women usually stick to insults and picking at someone's self esteem when they are irritated with another. A woman may or may not say this directly to the woman she's jealous of depending on how bold...