hi doctor, i am so nervous, my girlfriend and my never had sex, but on friday, we do some adults things, so i put my pennis on her ass, and some presimenial liquid go out, well she takes dixi 35 because she is an irregular , my question is, that if she could be mother or not.
I understand your concern and will do my best to answer your question. From what you are describing it is unlikely that she conceived but possible.  Taking birth control pills like Dixie 35 offers excellent protection against unintended pregnancy.  Using the pill correctly (perfect use) results in only a 1% chance of pregnancy each year.  Using condoms if your partner is on the pill is a great idea to avoid infections and adds some degree of added protection against pregnancy. You bring up a good question: women DO get pregnant from pronominal fluid: "pulling out" (as family planning) is far more likely to lead to pregnancy than faithful use of condoms.  Women DO get pregnant from having sperm deposited outside the vagina as well.  You should always use condoms from the start to the finish of any sexual activity until you are in a stable long-term monogamous relationship with a partner on reliable birth control. I hope that helped and best of luck to you