have any of you women who have had a previous pregnancy ever experience and heavyness in your uterus area? i have a child already and trying for number two but I don't really remember symptoms because I was so sick with her. and I feel like I'm pregnant, but the test say otherwise. and I still breast feed my 1st, but never with any pain but the last few days have been painful and my breast feel really heavy and my nipples are sensitive. idk what to think and need some help :(