Your attempt is lost... before it has begun.
A good writer can only communicate from that which they know, intrinsi-cat-ly, within their own, immediate, soul.
Phillip Until YOU have attempted, in your most free-bile way to replicate what your heroine is experiencing...it will never ring-true...it will always "feel" vicarious....spoken through someone, through someone, through someone-else.
Sincerely
Gargoyle
The BLUES ain't difficult...try it...you might like it and perhaps, give up writing for a noble and prophitable profession such as musician.
Hell - you might also consider cutting into left your testical if you have one every 28 days, after a three-day-vodka-binge, to discover what PMS and a period are.