Can I have some advice. Me and my partner had unprotected sex in December when I was ovulating. I've been off birth control for around 6 months. My period was due on the 9th January, today is the 17th and normally my periods are very regular and never late. This morning I went to the toilet and noticed a little blood when I wiped but it was really light and a pink colour then it's got a little heavier through the day but not heavy enough to use sanitary towels. I've had belly cramps, feeling sick every morning and really tender boobs. When I was four days late I did a pregnancy test and it came back negative. I hate doing tests as I always get disappointed when it's not the answer you want. Any ideas?