My boobs did that too. I'm sure everything is fine. Symptoms constantly come and go.
My boobs only hurt for the first few weeks and again now for the past 4 days. I've got ten days till my dd. So I think that is normal. I also had some pretty serious stretching cramps in my first trimester.
My boobs don't hurt all the time and I still have some cramps and I'm 20 almost 21 weeks.
No boob hurt on an off through out your pregnancy an cramping is normal body just getting ready to hold your littl baby
My boobs never hurt with my first or current pregnancy
Failed to mention I'm starting my 7th week if pregnancy!