The depth of insertion isn’t as crucial as ensuring that semen enters the vagina for conception to occur. While the exact distance of penetration isn’t the determining factor, the presence of semen in the vagina is essential for fertilization to take place. Even if only a small amount of semen enters the vagina, there remains a possibility of pregnancy.

It’s essential to understand that semen, which contains sperm cells, needs to be deposited near the cervix to facilitate fertilization. During ejaculation, sperm are propelled through the urethra and expelled from the penis. When the penis enters the vagina during intercourse, sperm can be deposited in the vaginal canal, where they can then travel through the cervix and into the uterus to reach the fallopian tubes, where fertilization typically occurs.

Factors such as the volume and motility of sperm, the timing of intercourse in relation to ovulation, and the overall fertility health of both partners also influence the likelihood of conception. While the depth of penetration can vary during sexual activity, ensuring that semen is ejaculated into the vagina provides the opportunity for sperm to reach and fertilize an egg, leading to pregnancy.