Had sex; he precame.used condoms but i had a brownish discharge a week after and now experiencing nausea. i have an irregular period so can i be preg?

Need more info: If it has been more than three weeks since you had sex, you could do a home pregnancy test. Use first morning urine and follow the directions for the test carefully.

Possible: Condoms are certainly not 100% so yes you could be pregnant if you have been having unprotected intercourse. Do a pregnancy test and repeat it in3-5 days if it is negative. Good luck.