Help- Can you bleed while being pregnant??

Hey ladies,

My boyfriend and I went on vacation about about three weeks ago. Of course it was during the week I was fertile and expected to ovulate. We don't use protection. I've refuse to put my body through any type of birth control. I honestly felt like we were going to conceive because we spend a lot of time together. 😉 I'm just so confused because last week I started spotting and then started bleeding heavier. At first I thought it was implantation bleeding but then the bleeding got heavier. I just wanted to ask you all if getting your period and being pregnant is a possibility. I've been on google all day trying to find an answer and I'm still unsure. I've been nauseous for a couple of weeks, I've felt terribly fatigued, and I just feel weird. Thanks in advance for your input!!