Pregnancy at 8 weeks?

*I have posted this before but I didn’t get that much feedback so I’m hoping people can give me some advice, I’m staying anonymously and might not respond because I am just really upset by this situation and I would just prefer to be anonymous*

I’m just curious the symptoms of 8 weeks? I had sex in November so if I’m pregnant I would be 8 weeks right now... I got a period in December that was heavy and lasted like 7 days? And then in January I didn’t get anything but really light spotting that stained my underwear but that was it. I’m not sure if I should be concerned? I plan on taking another test tomorrow morning but I can’t take a blood test because I’m on my parents insurance. Only symptoms I’ve had is bloating, maybe some weight gain, headache, back pain, cramps every now and then and peeing a little more than normal but might be because of how much water I’m drinking.. Should I be concerned? The reason I’m concerned is because I was sexually assaulted in November and after that happened I took Plan B to be safe. I am also on the pill but since it was my first time I freaked out and took Plan B :( I know it’s a lot of hormones but I just freaked out.. I really need some advice because I’m going crazy thinking about this!!