Don't see any conflicts between feminism and whatever gender/sex you are.

fem·i·nist
: a person who supports feminism.
: of, relating to, or supporting feminism. ("feminist literature")
fem·i·nism
: the belief that men and women should have equal rights and opportunities
gen·der
: the behavioral, cultural, or psychological traits typically associated with one sex
sex
: either of the two major forms of individuals that occur in many species and that are distinguished respectively as female or male especially on the basis of their reproductive organs and structures
fe·male
: of or relating to the sex that can produce young or lay eggs
trans·gen·der
: of, relating to, or being a person who identifies with or expresses a gender identity that differs from the one which corresponds to the person's sex at birth
As for the "talking over women" aspect, I think that's not really a topic about feminism, women, and transguys, but more about social skills and social graces. Timing, wording, how the people listening feel about the speaker (are they friends? does the speaker have to prove themselves first?), situation, the weather, mood, the flow of the conversation... those are the deciding factors I think. Just keep an eye out and observe, I think you will be able to "feel" if people will be offended or not. People's behaviors and thoughts are not so logical.