Pregnancy Dreams

My boyfriend and I started having unprotected sex. I recently started taking birth control pills but we had unprotected sex before I'd been taking the pill for 1 week. I'm not sure if that makes sense but that's the only way I know how to say it. Lately I've been having lots of dreams about being pregnant. I didn't really think about it much, I just thought I was having strange dreams. I tell my boyfriend about almost all of my dreams and a couple days ago he said that my dreams about being pregnant makes him nervous. He also said that I've been complaining about feeling tired and dizzy and having headaches a lot lately. He did some research online and said that some women had dreams about being pregnant then found out later that month or even the next day that they were pregnant. He also told me about someone who said that they believe the body knows you're pregnant before you do so maybe that's why I'd be having those dreams. So now he's got me thinking that I could be pregnant. I'm a little anxious about it now but I'm trying not to think about it too much because last time I thought I could be pregnant, it occupied my thoughts way too much and caused a lot of extra stress and anxiety for me. But I don't know how to feel right now