1st things 1st...As soon as the baby is born do a DNA test. Well, how dedicated are you to this girl? do you forsee spending your life with her? If so, be accepting, and take the child in as your own. If not, try to help your GF, but don't worry about the baby if you will have no part in it's future. It depends--do you love your gf enough that it wouldn't matter if the child wasn't biologically yours? Would you be willing to accept and love the child as your own? If you don't feel that you could do that, I would suggest breaking up. In any case, a DNA test should be done so that the birth certificate can have the legal father's name on it--the man who should be held responsible for the financial support of the child.
Its all about adjustments you'll be making with your life.
Adjustments are also made with the person you want to live your rest of the life. In the most of the cases its up to you, if you can digest the truth behind the relationship's past and future. I suggest if you can flush "what was happened" then it won't make any problem in future to yourself and the relationship with your loved one, but If you can't make it then there's problem or adjustments you'll have to make with your life.
no
Basically, a woman can only get pregnant after the hymen is broken.
No
yes...
internal friction between the aggregate particles is temporarily broken
If your girlfriend is on the Pill and takes it regularly as prescribed, it is unlikely that she is pregnant--but yes, it is possible. No birth control, except for total abstinence, is 100 percent effective. If and when her period is late, she should take a home pregnancy test and see her doctor immediately.
Yes
Yes
tell her that you already broke up with her and that you don't love her (you have another girl)
yes she has to already of had her period to get pregnant and the hymen has to broken too
Talk to her about it?
An ex is a wife,husband,girlfriend or boyfriend who you have broken up with.