Had unprotected when my girlfriend was on her period.?

well ya it has a chance pre ejulation and stuff has a little go toe planned parenthood its the name of the free clinic she can go even if shes a teen they take donations they dont charge u since your yougner than 18 good luck they will check for u and stuff is more accurate also she can be on the pills r something i use the patches be sure to ask them about other info about umm u might as well not use the test if they aren't working for her she can also get planned b piills but they only work 3 days after u go in her... my bf was like u always worried about the period thing cause didn't have enough money for condomns sometimes but we had to do some research about it and ya a little sperm even if u dont go in her at the end but its a les chance so u should go to the clinic and get they stuff they give u they also give free condemns ^^ seriously use the patch be careful read the instructions carefully about things