I believe the pee test is much better than tarot. Been there, done that. Once i freaked out because i thought i was preganat, but after the first two readings i noticed i was way too emotional...i'd see a baby there no matter if i got 5 of Swords, or the Empress, of the Tower, or the Fool...everything told me: 'baby in womb', so i decided to pee on the stick. Got a negative and moved on, lol.
Since then, i took better care of myself and made sure i wouldn't have this problem again.
As for reading for others...i'll preferably read only if the person wants the baby. For unwanted preganancy, i'll first tell you a good preg test to buy. Sometimes in life we need to go to the point directly, instead of freaking out for a whole week before doing something objective. Specially if it's something that's under our will, such as buying a pregnancy test.