If you have questions about contraceptives, your gynaecologist can help you. After a consultation and an examination, women can also get a prescription for the appropriate contraceptive. In most cases, you have to pay for the contraceptive yourself.
Condoms are available without a prescription in pharmacies, drugstores and supermarkets.
More information on sexuality and pregnancy can be found, for example, on https://www.zanzu.de/en/. Zanzu is a project and website of the German Federal Centre for Health Education (BZgA) and the Flemish Expertise Centre for Sexual Health. The BZgA also has the website https://www.liebesleben.de/en/ on the topic of safer sex and sexuality.