I can remember with my first dd that tender boobs were my first symptom and started even before missed AF but I can't remember if they went hard.
Boob went very hard yesterday and family history of breast cancer so went to doctors this morning but he has not set my mind at rest at all. Told him we are ttc but only had a period about 2 weeks ago so he said I "shouldn't" be pregnant. Well as far as I'm concerned I could be "just" pregnant. Anyway he felt the lump and said it was a lumpy area anyway and he didn't think it was cancer. He has referred me to the hospital but not as an urgent case so it could be a few weeks. I have had this before where I know something is amiss and the doctors have just dismissed it and I now don't trust them - I know my boob does not normally feel like this. So anyway, do your boobs go hard when you're pg?