I am not sure what you think the problem is but I'll hazard a guess.

If it's tightness down below then it's an advantage as this is what guys like. So you are on to a winner.  If you are worried about what size you will be able to take then test yourself with a dildo or vibrator. 

I was told I was tight at a smear years ago (I nearly fell off the bed laughing when they told me this) and I was an active prossie at the time so their version of tight might be different from ours.

If the cervical screening felt "rough" and it was uncomfortable, it may mean that you have an overly-tight vagina. Some women have a muscle that is too tense and it can actually make intercourse uncomfortable. Sometimes it is so severe it has to be be surgically corrected.

I had a large client today which is typical, and i could only get about 3 inch in but he did have a wide girth as well i felt stupid, we tried different positions but to no avail, so i just had to do oral and hand relief, hope things improve or i'll have to advertise for little willys only.I can't think what's causing it.

It sounds like vaginismus.

You don't have a "small" or "tight" vagina - you have a problem with an overly tense muscle. There is medical help for it.