Hi guys! I just joined today and my husband and I have been trying to conceive for almost 6 months!…

Hi guys! I just joined today and my husband and I have been trying to conceive for almost 6 months! I've taken 3 pregnancy tests since October but they all came back negative but I've only had one period in the past 4 months which isn't normal for me! Can someone please help? I did stop getting the depo shot in April 2015 but I had my periods regularly up until October!