You can do the same with your female friends if you can get into their apartment (like visit them). Just be sure that they are in their period. Another option is to keep searching for a person who would help you in this case. You can also ask your mother or sister if you have.
Plan B: Get blood from someone else. Although I would not be satisfied with this, because sometimes you have to be strict with yourself for the sake of your goal, success.
You can find several methods what you can follow if you want to create a servitor without using blood or semen. So these are not requirements.
The question is: do you really want to accomplish your goal in this way you wrote above? If yes, then I would go for that menstrual blood. If not, then feel free to follow another methods.
