We had a lengthy discussion here regarding a man removing a condom during intercourse in this thread:
"Is removing a cover rape?"
Regarding the OP's questions, a complaining witness doesn't "file charges." A CW makes a report to LE, LE sends the report to the DA, and the DA decides whether to pursue charges. In Texas, if the offense is a felony, the DA presents the evidence to a grand jury, which votes whether to charge (indict) the suspect.
I don't know what you would gain by pursuing a charge of rape, assault, or something else, unless he gave you an STD or you were impregnated. Do you really want to tell officials in the criminal justice system that you make a living illegally as a prostitute?