If the sex was unsafe, then chances of pregnancy may be there. Take a home pregnancy test at the earliest. Then consult a registered doctor and see what can be done. Do not take just any medicine without the supervision of a registered doctor. Also, you can contact FPAI clinic information about which you can get at their website.
https://lovematters.in/en/resource/unplanned-pregnancy
https://www.fpaindia.org/
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If the sex was unsafe, then…