hey man, no prob. some answers take more time than others
well, if your hands were dry when you touched her, she should be okay. but if you are still concerned, you can go to the emergency room or Planned Parenthood (1.800.800.PLAN) and get emergency contraception. Also, your girlfriend can take a home pregnancy test 10-14 days following the incident in question.
now, from now on so you'll not need to worry like this again, you can use rubber gloves for manual sex. with water-based lube. that way, when you take off the gloves and clean off, your hands won't have any semen on them. or you can use a condom during manual sex.
We can't get any more specific with pregnancy risks then the "low to moderate" that found in the Pregnancy Risk chart. Reason for that is, that there are just too many variables all round, and it would not only be impossible, but also unethical to outright say "oh i am sure your risk was lower than that because of xyz" or say "i'm sorry you're pregnant". No one here is psychic, after all - but we can give estimates, and that's what you find in the chart.
Like gummy, I'd recommend that if you two want to minimise your risk as best as possible, your partner should get emergency contraception.
Also, do as Gummy suggested and start practising Safer Sex. You'll also both need an STD screen, too. Also give a thought or two to getting reliable contraception to minimise your pregnancy risk. You wrote that your galpal just recently ran a risk with someone else - if she currently has a late period, she has to mention it when getting ec, they will do a pregnancy test anyway, because you can not take emergency contraception when you are already pregnant. Start up some healthy habits for both of you, now.
On another note: you mentioned your partner was "dry". - While it's quite normal to sometimes run a dry spell during sexual activity (depending on what time in your cycle one is for example), make sure that you'll start using lube at all times (like gummy suggested). It will make everything feel a whole lot better for her.
Emergency Contraception is indeed available at Planned Parenthood, other sexual health clinics, at GPs and Gynos and at Emergency Rooms. How much ec is depends on where you get it, and whether the clinic you visit operates on a sliding scale (earn little - pay little is the rule there). The average cost for a visit to get Emergency Contraception would be 20-25 US$ and 30-35$ for the meds itself.
Sexual health clinics are - in my knowledge and experience- always very helpful towards teens in all situations, especially pregnancy scares. If you go to Planned Parenthood, you can expect to be treated with dignity and care and without embarassment. I volunteered at a PP place, and sexually active teens worried about pregnancy are there each and every day - and no one there should give you a moral lecture.
PP will also treat you and your galpal confidentially.
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