If you thought you were pregnant and you got your normal, heavy period (not just spotting) are you safe to say you aren’t pregnant for sure?
Getting your normal, heavy period is a really strong sign that you’re not pregnant. It’s actually impossible to get a period while pregnant. You can always take a pregnancy test if it’ll help ease your mind.
Unprotected vaginal sex can lead to both pregnancy and STDs. If you want to avoid pregnancy while having sex, your best bet is to use birth control, like the IUD, shot, and pill (among others). It’s also a good idea to use condoms too, since they can help prevent STDs along with some bonus pregnancy prevention powers.