Does deep penetration help increase the chances of pregnancy?

Answer 1

The depth of the penetration or the length of the penis used has absolutely no bearing on whether a woman gets pregnant or not. All that matters is that viable semen was ejaculated into her at the right time in her cycle.

Answer 2

No. You get pregnant anyway and the woman have no nerves there so her pleasure is more on the outside and about 3 inches in.

Answer 3

No. Check out Sex for Dummies, by Dr. Ruth Westheimer. It's a good book even if you're not a dummy!