Cramping after sex

Okay so this may be a strange question but in the past this has only happened to me when I’ve been pregnant... not sure if anyone else has ever experienced this. But can cramping after sex be a sign of early pregnancy? I haven’t taken a test yet but Please let me know if anyone else has ever experienced this too! Thank you

- just wanna add I do not mean he impregnated me during that sex session Lol