Itchy nipples/enlarged breast

Erica • I`m 36 and had our 🌈 Baby on 1/9/2020 after having a Chemical Pregnancy and an Ectopic Pregnancy resulting in the loss of our twins in July of ‘17.
Could itchy nipples be an early sign of pregnancy? Mine have been itching so much the last 2 days. My breast are also enlarged, but not sore. AF is due 1/16 and I have been cramping everyday since I ovulated and I am bloated. I am not having any other symptoms.  So are these all signs of early pregnancy or am I just crazy?? Lol