Congrats to you! To answer your question - it's all normal. Even the weird stuff is "normal". Just start reading the books and talking to other moms-to-be online.
I've had 3. They were natural births (my mother was a midwife back in the day, I didn't much have a choice with her big mouth yapping at me to "do it this way" *rolls eyes*).
Anyway, all 3 were quite different pregnancies, too. But I did start out like you - my first "symptom" or sign was tender breasts and color changes in the area (like a pregnant cat!!!).
To answer your question about "do these things happen in waves?" YES! Look this up and ask your OB about it, too. To further answer this, I'll tell ya - with my 2nd child I KNEW I was pregnant, took a home test, "positive" result, didn't hurry but did finally get around to making appt. with doctor, go in, they take the "blood test" pregnancy test.... THEIRS COMES BACK NEGATIVE! Why? HCG (pregnancy) hormone fluctuates like crazy. They peak more during 8-11 week period of pregnancy, but that's what happened. The level was high when I took the home test and coincidentally so "low" when I had the blood draw at the dr's office that it didn't even register. I get along with my Ob-Gyn (old Spaniard who's friends with my mom - a nurse at same hospital) and boyyyy you can imagine we had it out. He's like, "You're not pregnant, go home, say hello to family." I'm like, "The hell I'm not!"
Obviously I was. My monthly checkups were a riot. As my belly got bigger it was, "I dunno, jeffe (boss)... are you sure I'm pregnant?" And he'd tell me to pipe down in Spanish.
Well, 7 and a half months later he delivered my daughter and - no kidding - when he walked in the room "when it was TIME" I laughed and said, "HA! Told ya!" And he's like, "You wanna deliver this baby by yourself?"
Okay, sorry for the rambling. Happy memories! Thanks for making me go there!
I'm so happy for you! This is so exciting (and frightening, I know!!!) Enjoy this. It will DRAG ON like nothing you've ever had to wait through.... but (and jump in with me here, ladies) THE MOMENT THAT FINAL DAY COMES, YOU WILL BE LIKE, "OMG! HOW DID THE TIME FLY???!!!!!" Enjoy every day, flutter, kick, fart and backache, sweetheart. I mean it. Because the morning after your beautiful angel is born, you will be laying on your side missing all those little movements in your belly that used to be "just your own".
Enjoy this year. Let us know what the due date is! Salud!