i would wait a few more days and see if you get your period. if you can't wait then get an early response test. the further from your period due date the less certain your results will be. try waiting to test at the most 2 days before your expected period. the date that you had sex is around when you probably ovulated so you could be pregnant. only time will tell. good luck!
am i pregnant? . i been experiencing itching fullness and warmth in my breasts. i also have lower back pain and slight nausea all day long during the last 4 days now and also i use the potty more often with headaches and i calculated if i am i/m 3 weeks and 2 days pregnant. my last period was 12/26/2012 and i had sex on jan 8th. i have a period every 28 days.