i was trying to conceive last month, i had periods but the amount of blood was very less and it lasted for 3 days .i had constantly pain in my lower back that runs from down to upward in my back bone and i feel swelling around waist .my bhcg and ultrasound reports are negative for pregnancy .i feel strectching around waist.tummy has started sticking outside as well.my doctor said i have polycystic ovary and started medicine for it after seeing the first ultrasound report .now another report showed that there are no cyst and everything is normal but the lower back pain does not go .i feel bloated as well although i don t have constipation.