Pain during sex... but only sometimes?

Julia • Livin in the beautiful state of Virginia!

Hoping to get some kind of idea why this happens.

Sometimes during penetrative sex I find it to be a little painful. Not due to forcefulness, or lack of lubrication. It doesn't normally depend on position, it just hurts sometimes! Sometimes it hurts but very temporarily and if we continue the pain sometimes fades off quickly.

Anyone else have similar experiences or ideas as to why this occurs?

Much love xoxo