Unprotected sex 4weeks ago , nipples look swollen, breast full, veins in breast, irritability, sharp pains is vagina, fatigue, back pain, pregnancy?

Could be: To find out do home pregnancy test، if u have no desire to be pregnant , don 't have unprotected sex , raising kids needs time and responsibility , it. Need to be well planned. In addition having unprotected. Sex can expose u to sexually transmitted disease , which can destroy u life. Good luck.

Pregnancy?: Am assuming that your period is late? If yes, take a home pregnancy test now.