I really need some help - I had my periods on 15 Jan (for 4 days). My cycles are usually 30 days long. According to Ovulation Kit - I ovulated on 31 Jan. From 31 Jan till 5 Feb I had unprotected sex with my husband. From 8 Feb I've been having pregnancy symptoms - like sore and swollen breasts, metallic taste in mouth, feeling sick, bloated and even my vaginal area has started to enlarge and become darker. I also feel some lower abdominal cramps.. Anyway since 15 Feb I've been taking pregnancy tests and even this morning I took one but all have come back with negative results. I feel very pregnant - I know this because I've been pregnant before and tested positive 4 days before my periods were due and with the same symptoms. This time around the symptoms are even stronger. Can I be pregnant?