Okay, about 2 weeks ago my boyfriend and I had unprotected sex about 4 or 5 consecutive nights. He didn't go inside me but I know that this doesn't matter when it comes to getting pregnant. Anyways, it's been about two weeks, and my period is 1 and 1/2 weeks late, which is not normal and my cycle is usually 21-22 days. I took a test but came out negative... But I also know those things are notorious for being inaccurate, esp. When it is this soon. But about 4 days ago I began to get mild cramps which felt like period cramps but no blood whatsoever. Then yesterday I went to the bathroom (still having mild cramps) and when I whiped there was a small amount of blood and it appeared to be inside of a clear discharge. The blood wasn't bright red but more pinkish red. And that was it and haven't seen any other signs of more blood or a period. My breasts are tender, and I am feeling more emotional... Like on the verge of crying by watching a sappy commercial... Like how I felt with my first (which was my last) pregnancy. Only difference is I am not feeling loss of appetite or any difference in it. I do get nascious around the time I go to bed but I don't throw up. I am wondering if I could still be pregnant even though my appetite has not been effected and if the blood I saw was implantation bleeding... And if cramping is a sign of implantation as well?

Please help or respond with any information you have, thank you so much, god bless.