Yes you can it just might be a little messy.
Someone just asked this on the blog at http://howto-finger-a-girl.blogspot.com/ . Check the site for a good answer.
If you are having a period you cannot be pregnant
yes
No
It isn't really possible to get pregnant while having a period.
is it okay to take myrae while having period
It is biologically impossible to be pregnant whilst having a period.
Nothing will happen. It is just the same as if she wasn't on her period. Her finger will get very messy.
When you are having your periods, you can feel better by staying positive all day long.
is it okay to take myrae while having period
From hand and finger pressure while having sex
no
There is no reason why you can not do a urine test while you are on your period, but the issue is there should be no reason for you to need to do a urine test if you are having a period. If you are having a period, it is highly unlikely that you would be pregnant.