Health Insurance VS Transman?

Hey everybody! I feel the need to hear other's opinions on what happened today to me at my brand new job. Yay employment after six months of searching!

So, I work for a small, family run company that parallels my post-secondary education. They're nice people, and [I think] GLBT friendly. I was there four days on a trial before they said "heck, we want you full time" and today I was filling out the forms for the health benefits package.

Now, they don't know [yet] I'm in a relationship with another man. And they don't know I'm trans... cause I pondered over the check boxes for a good ... two hours.

Normally the boxes say SEX so I put an F cause hey, that's what my OHIP card says so it only makes sense to keep that consistent. But this form said GENDER. So while I knew they were asking my sex, but being dumb about it... I put male. Legally I am male, everything but my OHIP card says so.

Here's where I wonder. When the company starts paying up for my testosterone in three months (probationary period hooray), and they see its for Jay B - F not Jay B - M... what's the likely response and will I have to come clean so to speak on my trans status? I'm not going to have an issue telling off a company I don't deal with, and I don't worry about what my co-workers will think (I doubt they will care) what I don't want is my coverage to be nulled because I "lied" or they don't do "transitional" medication even though I've been on it for over a year and am in theory... a post op male.

So, am I worrying over nothing? Do you think I shot myself in the foot and rough waters are ahead? Has anyone had to deal with this sort of thing before (and would like to share)?

This is my first time going on my very own insurance plan, so this is new territory for me. Much thanks for kind thoughts and thoughtful words. Flames and hate will be laughed at like the plot twists in Shutter Island (which Mouth and I saw tonight... it was okay.).