My gf and i had unprotected sex on her ovulation date. she took plan b the next day. one week later she is feeling fatigue and urinating frequently, tho she is getting discharge that usually occurs 1-2 weeks before her period. should we be concerned?

Plan B is about 95% effective. From the day of sex, it takes about 3 weeks for the embryo to make enough HCG for a positive pregnancy test. Blood test may be done a day after a missed period. Home pregnancy tests should be done 4-5 days after the missed period. If the result is negative repeat the test in 4-5 days. Use first morning urine and follow instructions for the test carefully.

Best is to get a pregnancy test. If discharge and frequency persist pl see a GYN. she should drink some water too.