What's your plan for when she gets pregnant? If you're calling it "baby trapping" then maybe being a parent right now isn't for you.
Condoms Every single time
And assuring she is using a reliable method of birth control as well until you are BOTH ready.
How is scooping some dudes come into your vagina not an attempt to get pregnant behind his back?
If a man stealthily removed a condom y'all would be fucking crucifying him.
I should have said OP is NTA. His girl clearly has some issues, and they are not truly on the same page here. He needs to look out for his own well being.