Plan B side effect or pregnancy?

Hey I take a half of plan b after 72 hours spotting p no cramps no nothing just pink spot when I wipe what do that mean and I'm early for my period it always come on ryte on time after I take plan b

I had unprotected sex August 22nd, around the time I was ovulating. I took "Take Action" the next day. It's been a week and my boobs were sore for a few days, but aren't anymore. I'm having cramps like I would on my period, but I'm not bleeding. I was feeling nauseous the past few days and have diarrhea. I'm scheduled for my period any day now, but I'm scared. Are these side effects of the pill, signs I'm getting my period, or am I pregnant? I know it's kind of early for pregnancy symptoms, but still. Please help.

My period ended July 14th, my boyfriend and I had sex on July 16th. After that we had sex around four times over the next few days. On July 22nd he was sure he finished in me (no condom used, stupidly) so on July 23rd I purchased the Plan B pill because I'm not on birth control and took it immediately, it was no later than 15 hours after we had sex. At first I had no side effects, I felt normal but them over the next few days I started to get some; sore breasts, abdominal pain, tiredness. Those were the only ones I received. Then on July 29th I received a period.. Or what I've been thinking and hoping was a period. I've read I feel like a million different articles and reviews about this pill so I knew a period a week later was to be expected. Well then I got to doing more looking around online and I found out about "implantation bleeding." This period I got only lasted from Friday, July 29th to Monday, August 1st. I read that's normal with Plan B but I also read that this is normal for implantation bleeding. Plus, it said the implantation bleeding occurs 6-12 days after and my period I received was seven days after the sex and six days after the pill which could easier be both? The bleeding was brown to begin with, then went to a light red and was enough to fill up a tampon on Saturday but the the day before and the the last two days I only wore a panty liner and there was hardly anything on it throughout the whole day. Over the last week an a half I would say I've been peeing more frequently, I read that this has happened to some people with the pill but not to others.... I guess it just depends on you, right? I hope so. I've been bloated for probably the same time frame also and I read that this can be normal too or it would e an early pregnancy sign. So I'm really stressed with that because frequent urination and bloating. Yesterday, August 24th I had some cramps and today I have some too. I was just assuming this would be because my period would be coming soon. I know I've read how Plan B can throw off your cycle but I was just assuming and hoping I would receive my next period around the same date as I did the previous month due to the pill. So yesterday I was feeling good about the cramps because I really don't want a baby (I'm a senior in high school) and I know I'm not emotionally or financially able to care for a child. But then I got to Googling things and I found out that cramping 3, 4 or 5 days before period is due can be a sign of pregnancy and I can't get it off my mind at all. I know sex without a condom was a dumb decision and I know it's easy to forget to think sane when you're in the moment but it happened and I've been so stressed since then. I know a pregnancy test will be a good idea but I think I have to miss my period before I do that? I'm extremely scared about what the result I would get with that would be anyways. I've been hoping for the past month I'll get my period, I've cried myself to sleep for about two weeks because I know I made a dumb decision and I'll have to deal with the consequences but I really hope I'm not pregnant but I feel like there's just so many signs leaning toward it. I've been hoping I've been overreacting too (my best friend and my boyfriend thinks I am) but it's also not their body so it's easy to not be worried when it's not happening to you. My boyfriend says if I was pregnant I would probably be having some symptoms by now... I believe him but I also believe people's body's are different.. I haven't had any morning sickness, food cravings, dizziness, any nausea of any sort which I've been thinking is a definite good sign but I don't think everyone experiences the same things during. Honestly, I'm just hoping I'm not because I'm in no say ready for a baby and my family aren't people who accept things well. I've been stressed ever since I took the pill basically, I know stress can mess with your period too but I just don't know what else to do. Please help.