Early pregnancy symptoms

While I don't feel like I'm going through all the "text book" symptoms, I'm definitely experiencing a few notable differences. For starters, my breasts feel like sacks of boiling potatoes--full, hot, and not fun to touch. "Morning" sickness is totally absent, though I've been getting heartburn on and off since before we even knew I was officially pregnant. I'm urinating more than normal (who would have thought that started NOW?) and I'm extra tired all day long. I'm not sensitive to smells, but I have been having difficulty sleeping on my back; it leaves my lower abdomen sore and extra crampy. Oh, and the cramps have lessened since what I assume was implantation, but they still show up mild and intermittent. Not much to complain about so far...All I want is for everything to go right and as healthy as possible.