I know this sounds really stupid, but I have been getting some mild rythmic movements at my belly at different times of the day. Some days I go without them and other days I get it couple of times. Are they just Braxton Hicks or my baby's hiccups? I can't really tell the difference and have no experience of this since this is my first pregnancy. These rythmic movements last for a few minutes, they're not painful, just very synchronized!