It's common to have concerns about sexual health, but when it comes to pregnancy, the depth of penetration isnt the key factor. Pregnancy can occur with any level of vaginal penetration as long as sperm comes in contact with the cervix during ejaculation. Also, if you're dealing with issues like erectile dysfunction or premature ejaculation, those are also worth discussing with a healthcare professional. They can help you understand the underlying causes and suggest appropriate treatment options.

A penetration of at least 4-6 inches is generally considered sufficient for sperm to reach the cervix. I have some sexual problems with penis erection and premature ejaculation. For erectile dysfunction, you can try using Viagra (Sildenafil). For premature ejaculation, you can try using Priligy (Dapoxetine). Make sure to consult a specialist before starting any new medication.