Lately I've been feeling weird my nipples are sore. I've been having mild cramps and back pain. I've been really Moody lately. I'm ebf with my 5 month old daughter. And I haven't gotten my af since giving birth to her. I'm concerned I took a pg test yesterday and it looked kind of weird it looked like a negative but we're the test line comes out it was just pink smudge but not a line. I'm scared idk what's going on any advice??