if my bf inserted only less than a half of his penis into my vegina but did not release his sperm ,will i become pregnant?plzzzz help me

Hi Anonymous,
Thank you for your question, and for finding EmpowHER.
Anytime you have unprotected sex, you run the risk of getting pregnant or STDs. This question has been answered in a lot of detail several times. Please refer to this post and others like it. You can read the responses from myself, Rosa Cabrera, Alison Beever, and the other EmpowHER Guides:
https://www.empowher.com/community/ask/can-i-get-pregnant-if-he-only-insert-his-tip
Good luck and let us know if you have any further questions.