Playing the waiting game with the Plan B pill...?

Before I ask my question, I'll give everyone some background information. Sorry if it's TMI.

On July 1st I had sex. It was protected sex in the beginning, until the condom slipped off and got stuck inside me. Neither me or my boyfriend had felt or noticed it slipped off so it wasn't until he pulled out and reached climax that something didn't feel right. That was when I realized the condom was nowhere to be found. It was definitely one of those WTF moments. I know for a fact I was ovulating because my body had been giving me all the signs a couple days before. I really didn't want to go on the Plan B pill but my boyfriend kept pushing it on me. Finally, I caved and got it.. Take the first pill right away and the second pill 12 hours later. I took the first pill about 3 hours after the sex mishap. Then the next day took the second pill, but took it way more then 12 hours later. More like 18-20 hours later.

For the first few days I felt great and had no side effects or symptoms of the pill. Then on July 5th, I woke up with dark spotting but no cramps what so ever. I went on with my day and felt fine. July 6th I had some light spotting again, still very dark and still no cramps. Then, July 7th I had a light-average flow which I would consider my period, but no cramps. Of course this period was 2-3 weeks early. For the next two days I had horrible, debilitating cramps with heavy, ridiculous bleeding and small clots. I had a lot of pelvic pain and pressure July 8th and July 9th. By July 10th, the bleeding was nearly gone and I was only spotting. I was constipated the whole day and my pelvic area was extremely sore.. I could barely walk. I was also getting dizzy on and off and ended up with a really bad migraine all night. July 11th I had spotting and was really tired all day. My urine also started smelling really weird and was a lot darker then usual. This was also day 2 of being constipated yet I had quite the appetite and was hungry through out most of the day. July 12th I was irritable and moody and really felt like any day I was going to get my period. July 13th I started feeling very lethargic and lacking energy. Even though I wasn't doing anything very productive, I constantly felt like I needed to nap. A lot. I also noticed that day, while getting ready to shower that my left hip is swollen feeling and a lot more cushioned then my right hip. I also started experiencing dull aches on and off through out my pelvis. Around this time, I've noticed more discharge and it sometimes feels like I've gotten my period. But when I go to the bathroom and wipe, there's no blood or anything.

Now.. onto now and the last couple days..

I understand this could all be effects from the Plan B pill. I know it's super strong and throws the body and my cycle out of whack. I read a lot of questions and answers and went on a lot of forums before posting this. But I still couldn't really find anything similar to what I've been experiencing these last couple days.

It's been almost over 2 weeks since I've taken the Plan B pill. I've noticed myself lacking in appetite, then craving ridiculous foods every other day. Yesterday morning, shortly after waking up I got so nauseous I thought I was going to throw up. The feeling eventually subsided but later in the evening came back for a short while then went away again. I've had a pressure underneath my belly button for a few days now. It started out as an ache but now is tender if I press down even the slightest bit. It almost feels like gas, but I really don't think it is since I've never experienced that feeling directly underneath my bell button before. My stomach feels distended and my whole pelvic region feels tight. I'm definitely not a skinny girl, but I do feel like my stomach is a bit bigger. I'm just wondering if anyone else has had these feelings, especially 2 weeks after taking the Plan B pill. I did take a pregnancy test about a week and a half ago and it was negative. I'm wondering if I should take another one. Or if I should just wait for my next period.

Does anyone have any advice or info? Or similar experiences? And if so, was it because of the pill or did it turn out to be something else? The whole "full" feeling in my belly is a bit unnerving. Mostly because I don't know what's going on. I have taken the Plan B pill before (a year ago) and never experienced anything like this ever. Some peace of mind would be nice.