Should I take a pregnancy test?

So, my period is 7 days almost 8 days late. I’ve been peeing a lot like I was on the phone with someone for 2 hours and I had to pee like 4 times and I only took a couple of sips of water. I’ve been nauseous/nauseated. Back pain/boobs hurting vaginal discharge. I even went to the bathroom and it was like spotting brownish/watery. I had sex like a month ago and we had a condom on so I don’t know and I was taking amoxicillin for an ear infection. Should I take a pregnancy test? I’m not on birth control and that’s why we used a condom. I’m not stressed or anything, so I don’t know..