Āveṇikasutta

Suttapiṭaka · Saṁyuttanikāya · Saḷāyatanavaggasaṁyutta · Vol. 18 · Section 464

[464] Furthermore, bhikkhus, a woman becomes pregnant. This, bhikkhus, is the third particular suffering (dukkha) of womankind, which a woman undergoes and not men.

English translation from the Pali (Siam Raṭṭha edition) — under review, not for citation.