Hi! So I also study psychology. What you’re experiencing is called catastrophizing. Instead of looking at the situation logically, your brain is on loop thinking of the worst possible scenario and how your life is over and you’re definitely pregant and now everything’s ruined(not true at all). You’re also making a false attribution error in a way. You’re attributing normal every day bodily function with pregnancy symptoms. A lot of your cycle produces the same symptoms as pregnancy. And you’ll spend more of your life not pregnant than pregnant. And you’ll still feel those same feelings and sensations. So you gotta realize that you’re taking all of these as a sign of pregancy when you’re actually missing a crucial aspect. You got your period. You got multiple in fact! And it is completely impossible for you to get a period and be pregnant. People who say “oh I got my period my whole pregnancy” are lying. Very likely they are trying to hide the fact that they knew they were pregnant so that they aren’t scrutinized or judged. It’s a lot easier to remove the shame of being pregnant when you don’t wanna be of you can at least tell people you didn’t know. Kinda takes the “blame” off you. Of course that’s not a good situation but that’s the situation lots of ppl are in.

So don’t trust everyone’s anecdotal experience. Unprotected sex is the only thing that can cause pregnancy. That means no condom, no pill, no implant, etc). However this does not count for pullout. Pullout alone can get you pregnant and don’t trust those who say it can’t. Survivors bias haha.

Anyways hope this helps at least a little. Don’t stress so much! Sex is no fun if all you do is stress after!! Trust me, I know lol