I'm pregnant but haven't noticed symptoms

I took a 80¢ Walmart test that was clearly positive. I didn't trust it so I bought a digital advanced test. That's positive to and says I'm 3+ weeks. I haven't really noticed any symptoms. At first my boobs were super sore but now they aren't...I had a blighted ovem in a previous pregnancy and I'm worried something like that is happening again. Yes I have increased appetite and kind of tired but that's about all...should I be worried!