tender breasts

Brook • I'm 22 years old . Marine Girlfriend Colton Joseph Cox Due feb 10th
Ok so I called the dr about blood due to me and my husband having intercourse . (That's normal) I'm 6 weeks pregnate. I have morning sickness occasionally not all the time . And my boobs are like if you poke it then it will hurt not like omg I can't touch pain . I was told by that if my boobs don't hurt and they go back to normal means I had a miscarriage. Someone help I don't want to loose my baby .  Is it normal to have semi achy boobs ?