no, this doesn’t seem to be the case. more than 80% of those avoiding pregnancy use condoms, pill, tied tubes, vasectomy, iud, etc… this 80% does not include withdrawal. [0]

5.8% rely on withdrawal.

[0] https://www.guttmacher.org/fact-sheet/contraceptive-method-u...

The 80% claim must include withdrawal, because their claim is that the population not using any method has only a 15% non-pregnancy rate within a year. But withdrawal has a much higher 80-96% rate of non-pregnancy within a year.

https://www.guttmacher.org/fact-sheet/contraceptive-use-unit...

> Sexually active couples who do not use any method of contraception have approximately an 85% chance of experiencing a pregnancy over the course of a year.

Therefore, withdrawal is a method of contraception.

the 80% does not include withdrawal. the numbers are here [0].

80+% rely on things like pill, condom, tied tubes, etc...:

23.9: tube ligation/implants

16.4: pill

13.2: condom

12.0: iud

8.50: vasectomy

2.6: implant

2.1: injectable

1.2: vaginal ring

.4: patch

80.3% rely on the contraceptions listed above.

The remaining rely on: withdrawal, emergency contraception, family planning, etc...:

5.8%: withdrawal

2.6%: family planning

0.2%: emergency contraception

0.2%: other

11%: no method

the 80% does not include withdrawal.

[0] https://www.guttmacher.org/fact-sheet/contraceptive-method-u...