Nattykr -
I don't believe there is any single answer to this that will satisfy everyone.
It could be that you will meet a man who has chosen to limit sexual experiences, and feels strongly that sex is something to be shared only with someone he has a deep connection with. For that kind of man it could be an issue, should you choose to reveal your past. I wrote 'could' because even then, what is past is past, and plenty of men can look beyond the past to the present and future.
I do think though if you meet a man who has a double standard that you are well within your rights to see it for what it is, a double standard.
I'll probably get beat up over it, but the reality is we people do judge each other over our past. For example, many people would refuse to date an ex-convict, or an ex sex-worker, or... well you get the idea. Why does the past matter? Pretty simple I think. Every relationship is a gamble. People do tend to weigh a person's past in their mind when deciding their risk of relationship failure/success in the future.
Personally I think sex is strictly a personal choice, but by the same regard, it would be foolish to pretend that a person's past, if revealed, doesn't have an effect on how others feel. I don't see any problem with people having had many sexual partners, but likewise, I see no problem with people who limit sexual partners. Both are personal choices, and neither is right/wrong as such, but all people have a right to make their choices. You also have the right not to reveal your past.
When it comes to double standards though, that's an indication of a relationship that has already started off on the wrong foot.
Anyway I wouldn't worry about it. Follow your heart and hopefully you find a man who appreciates you for who you are now and in the future

Best wishes,
X