what were the first signs for you?

Rebecca
Been TTC for several months now and in November I thought I might be pregnant. I was feeling nauseous and light headed and  took a test and it was negative. Next day I got my period. Pretty sure it was a touch of the flu. 
Now I'm trying to not get too excited whenever I have what I think is a symptom. Part of the challenge for me is that I was on bc for a long time, so I'm not quite used to all the horrible shit that happens when it's just a normal period. (It really sucks being a girl sometimes)
My boobs keep hurting before my period, is there a different boob hurt if you're pregnant? How soon do you get morning sickness? What are the most common first signs for you? I know everyone is different, but I thought I'd ask...