Okay so me and my boyfriend had intercourse on the seventh(a Monday) and I ended my period about four days before. So when we did it nothing came out and I layed there with my hips up. The next day I didn't feel so good but didn't think I could already be feeling it. So that Thursday morning I was spotting dark brown through out the day and it kept going until Friday night it finally stopped. Iv been sick to my stomach like I wanna throw up, and iv ha non stop cramping. Aboout four days ago I was having trouble with my sides. I could barley wall it hurt so bad. But only lasted for about two days. It's gone now. Iv ha head aches on and off. My lower back killing me. My boobs have veigns running all through them and are becoming fuller.Iv been constipated on and off an been really tired 24/7. Also felt like I had a big knot it my top stomach. Gums swollen and have had discharges . Monday will be two weeks completly. I just didn't think I could be feeling this way so soon.? I went for a blood test and came back negative . Also hpt neg . Iv also been urinating 24/7.Could it be to soon? I Dont why all this would be happening if not pregnant. And I have a gut feelin I am? And advce or has anyone experienced anything like this?