I'm 1 moth pregnant can I get a tooth pulled out or take amoxicillin 500mg for infection?

Definetely, yes. Just be sure to let your dentist know you are pregnant and coordinate with your OB/GYN. A special considerations should be made when tooth extraction is required during pregnancy. Good luck.
Yes have tooth out. Yes you can have the tooth out. The burden on your immune system and the stress from the pain is worse for the developing fetus than the risk of surgery.
Wait if you can. It would be best to wait to have it pulled during your second trimester unless it is really a bad problem. Amoxicillin can help with the infection but you don't want to be on it for a prolonged time.