Like it's the first time

I have an 8 year old daughter now- get daddy finally agreed to anther little one. We've only been trying since last month, my body feels like it's pregnant& I don't know if it's my brain or if it's legit. I feel like I've never been through this!! My baby girl wast "planned" so I feel like I'm worrying too much about not being able to get pregnant. I had my period or what I think was my period, but no cramps or pain which is not usual for mine. I'm gaining a little weight & my boobs are getting a little bigger. I'm a small framed gal& it didn't take long last pregnancy to gain weight& for my boobs to start growing.   The brain is just so powerful & I don't want to bring bad luck to myself to keep testing.   I'm puzzled & don't have friends ha ha   Help:(:(