This is a very gentle question, and I think many of us wonder about these things. Usually, for pregnancy to happen, sperm needs to enter the vagina and reach an egg. Just rubbing externally without any internal penetration or ejaculation is highly unlikely to cause pregnancy. But it's good to be clear about it.
No, pregnancy cannot occur through mere rubbing. The prerequisite is for live sperm to be introduced into the vaginal canal. External contact without internal ejaculation or direct semen transfer has virtually no risk of pregnancy. If there's any confusion, it's always best to clarify these basic facts with a healthcare professional.
No, sweetie, pregnancy doesn't happen just by rubbing. For conception, sperm needs to be deposited inside the vagina and then travel to fertilize an egg. Unless there's actual ejaculation *into* the vagina or direct transfer of semen, it's not possible. So you can be rest assured on that front.
I felt so naive about so many things when I first started trying to conceive! But no, pregnancy cannot happen just from rubbing. It requires the sperm to actually enter the vagina and make its way to the egg. So please don't worry about that particular scenario.