Hi, I'm 19 and on a 28 day pill. I started the pack on the 31st december and I missed the 10th and 15th of January. I had unprotected sex with my boyfriend on the 8th, 14th and 16th of January. I then also missed pills on the 19th and 20th of january. (I don't usually miss this many pills in one month - usually one, or two at maximum.) On the 21st I had a little bit of brown blood on my underwear, hardly any to notice. My period was due on the 22nd, but it never came, and still hasn't - I have only had white discharge instead for the first 3-4 days of when I usually have my period and now just a little every now and then like usual. I have never missed a period, on the pill or off the pill ever since I first starting getting periods. I took a pregnancy test on the 25th and it showed negative. Would this result be correct or would it be too early to detect? I'm just worried because I have never missed my period before. Thanks.