Well there are many factors to consider. But one that you will have to adjust to is psychological preperation for the penile penetration.

It does help if 1-you know your body well enough 2-practiced masturbation(see insertion) and 3- if he is delicate. This is NOT A RACE.. Remind him that.

Do expect some blood, but every girl is different. Pain can be as small as a pinch on your skin..

Finally, I suggest quite some foreplay and a fair amount of lubricant to ease in entry.. you don't go all in the first time.

Hope this works out well for you.
-D

Physically it varies from one woman to another. For many it is a big non-issue; For a few it is impossible; for most, it is a brief pain and that is over. All women should have exams before becoming sexually active. Perhaps it is time. The doctor can reassure you that everything is normal or, perhaps, make a minor adjustment that will make it more comfortable.