How do you intercourse in honeymoon?
The same way as everyone else!
Honeymoon Disease is basically inflammation of the vagina due to increased sexual activity or increased frequency of sexual intercourse during a short period of time. It is also called Cystitis. It can be prevented by using lubricants or ensuring that the vagina is sufficiently wet before commencing or continuing sexual intercourse.
You continue your honeymoon as normal, menstruation doesn't stop you doing anything. If you want to have sex then have sex, during menstruation sex can be a lot more enjoyable and menstrual blood is no less hygienic than any other vaginal fluid so nothing to worry about. You can choose to avoid penetrative vaginal sex if you'd rather avoid dealing with blood, otherwise you can have sex in the shower or use products such as…
This is only suggestion, but I would be most surprised if a couple who were married in this day and age had not had sex prior to their honeymoon. A honeymoon is for the purpose of the newly married couple to seal their marriage by the act of procreation i.e. having sexual intercourse so that they might start a family.
My wife and I spent our honeymoon in New Zealand. We struggled choosing where to go on honeymoon, but having done some research we came to the conclusion that a honeymoon to New Zealand was the best choice for us. We wanted a honeymoon that was action packed but where we could also relax and unwind.