Are the effectiveness stats assuming the man ejaculates inside the woman?

Yes. Here are the typical use effectiveness rates vs. perfect use. All are with men ejaculating in the women:

• Low dose estrogen pills:
  • Of the three COC trials, one had a BMD decrease for the group with gestodene plus EE 15 μg. Another indicated less bone resorption in the group with gestodene plus EE 30 μg versus EE 20 μg.