BBT Question...please help!?

It is a half a degree low, I would not stress yourself out by putting thoughts in your head about miscarriage! I am pregnant with my 3rd child and the saying has been true for me, every pregnancy is different...so its very hard to compare yourself to others, some are similar but you are the only one that knows how you feel! If you are really worried I would go see your dr! Thats really the only thing that will ease your mind! don't let anyone tell you that you are over reacting, always go with your gut feeling when your pregnant cause your motherly instinct has already kicked in and you might know something that no one else does! good luck!