Early pregnancy symptoms?

Hello guys, I’m new to this whole App and posting thing.

Little back story;

My husband and I wanted to try for a baby once he got back from his next deployment. But I recently found out that I have a blood disease called factor 5. (It’s just part of my DNA) And my doctor took me off birth control. It’s been a little bit now since I’ve been off and I’ve been feeling a little different than normal. I know a lot of it is hormones!! I’m supposed to start my period today. If I don’t start it how long should I wait to take a pregnancy test? What are some early signs I should be looking for?