Once I have taken to sex life, and I am suffering so many after… Of course, now to stop the suffering, they have invented this contraceptive method. He knows there is suffering, but they, in order to avoid this suffering, they're taking this contraceptive method. And that is also suffering. That he does not know. Bhrun hatya. Contraceptive method means killing the embryo. So that is also another sinful. He's taking so much responsibilities. So either you take contraceptive method or do not take contraceptive method… If you do not take, then the child is born; then you have to take responsibility. Now they're killing the child, in this way becoming implicated. But if one is trained up to remain a rigid brahmacari, there is no trouble. Therefore it is said, trpyanti neha krpana bahu-duhkha-bhajah kandutivan manasi yah visayeta dhirah [SB 7.9.45] I know if I satisfy this itching sensation, I'll be put into so much trouble after it, so if one is dhira, little sober, he'll better suffer this itching sensation than to take the responsibility. This is the sastric injunction.

Srila Prabhupada, in conversation with a German Girl and Devotees — March 30, 1975, Mayapur