Crazy I am going through the same exact thing! I feel stupid going to the doctor because they are always quick to assume I am there because I want to have my baby. They don't do anything most of the time other than check her heart rate. I say I'm bleeding and I go in there and it stops.I've had two already. I didn't have these problems with the other two. They were boys though. This little girl is a totally different pregnancy.
I notice that when I drink water it goes away. When I sit in an upright position I start to cramp, and lightly bleed. Once I drink water and lay down I'm ok. I don't get thirsty so I sometimes forget to drink water but I really do think it's important.
I also freak out because her head is right there so when I sit I feel like it hurts her. I know she's protected, but why would I bleed ya know? Mother knows best I think.
I did learn with my other babies that when it's time it's time. My water broke, and it was time after that. I was so uncomfortable until then. It's natural to worry. I always think she's got the cord wrapped around her neck, or my position sleeping is squishing her somehow. Or she hasn't moved in too long.. It's scary because there's the what if's.. If you don't get help what happens...
I wish I could take my own advice but if your ever worried go to the doctor. What if it were something you'd regret not going.
Sorry to carry on so much.. I guess I'm passionate about this.. I have a month to go. I delivered both of my boys at 36 months so maybe less than that... Good luck to you...