Does it mean anything?

I'm only 31 weeks pregnant but my mothers side has a long history of premature baby's from being 30 weeks and above, I have dropped instantly I was walking around a big shopping centre and had watery discharge and then the next day I noticed she dropped, however two weeks before she was in breech and this week she's in my pelvis I don't know if it was because of that but she's dropped a lot and I've been having a lot of cramping the past two days, does dropping mean anything at all or not? I really believe she will be here by 36 weeks and I haven't started my antenatal classes yet so I'm so nervous but so excited!