Its highly unlikely as pre-cum has very little sperm (if any) in it.

I would have to say NO. Sperm must enter inside the woman, on the day or days she is ovulating in order to fertilize an egg. I have never heard of sperm floating around outside, and then heading inside to the Uterus. Sperm does not last very long outside the body due to the air/Oxygen. Please try to use protection next time.

No, but I think that you should consider stocking up on condoms for the future.

No, but it is possible to get pregnant if he touches you and has some semen on his fingers (just so you know for futur reference) Also, If you were to have sex with him wihout a condom, even if he withdraws before he ejaculates you can get pregnant becasue of the pre-ejaculate.

When wearing clothes, it becomes even less likely for sperm to penetrate, once it hits the air they die. Again,if none of his "fluids" reached your vagina, there is no risk of pregnancy.

Of course it is. They can even travel through a latex condom. If he rubbed his naked dick on the outside of your sheer panties and came on you, then sperm can leak through. It's unlikely, but entirely possible.

ok well form my experience in the medial field, not it is not possible for seamen to travel though underwear. it is obvious your relationship is starting to reach a new level and you should consider birth control and condoms. it is an unsafe measure even if dry sex is involved. but from my experience, medically and personally, it really isnt possible, but i wouldnt rule out the pregnancy. you have less than a 1% chance out of 100% chance of the pregnancy. if you feel uncomfortable, i suggest going to see huer OB/GYN for further information if your that worried. get a urine test done. its all done though the hcG hormone in the womans body. i would like to imform you though i am 16 so i would like to share some information with you on this subject. honestly, if you do feel uncomfortable, go see her OB/GYN for further information and a urine test or just ge t a home pregnancy test. i personaly suggest a First Response pregnancy test. they are most reliable. hope this helps you out. i will be checking up on this. i am somewhat certified in this catagory since i am in a college course for this in high school. please feel free to contact me on here. i have Windows Live Messenger (steven_corbin@hotmail.com) or AOL Instant Messenger (Coldenhamfd92).