My period is 3 days delayed should i take pregnancy test? and what are the signs of pregnancy?

3 days- protection?: Assuming you had unprotected sex- do a home pregnancy test this week and repeat next week. Pregnancy signs would be: missed cycles (s), breast fullness, possible early morning nausea/vomiting, wight pain and possible darkening of the nipples. 3 days is a bit early to tell; however, it is time to see a GYN for definitive BC pills and always use condoms!