Oh no you poor thing. I hope you're not too bad, I had it a couple of years ago (age 36!) and it was NOT pretty. I had it really bad and was quite poorly with it. Sorry not what you want to hear! I then gave it TO my daughter (who had it quite lightly in comparison!)
It might be worth contacting your GP about it, I believe it can be harmful to pregnant women. Several years ago when my sister was pregnant someone in her office had it (and she hadn't had it as a kid like me) and she had to go to be tested and because she hadn't had it, i'm sure she had some kind of jab, but I may be wrong. Anyway they at least signed her off work for a while.
If you need any tips on how to ease the itching and suffering let me know!!