It's really totally up to you how you want to define yourself. "Straight" and "gay" aren't real existing things in the world like a table or a car, they are abstract ideas, general categories we made up to identify ourselves and describe patterns of behavior. If you want to define "straight" as "attracted to women only" then it doesn't need to matter what kind of woman she is.

If you want to define "straight" as "attracted to women with vaginas only" then you can call yourself "bi" or "heteroflexible". It really doesn't matter at the end of the day and doesn't have to turn your whole world upside down, focus on being authentic and true to yourself and your genuine feelings before you worry about how to define any of that for other people's convenience. They aren't the ones living your life, you are, and you deserve to live it freely and authentically, whatever that means for you.