Need advice please. FTM

I'm 34 + 1 weeks. Baby has been head down since 27 weeks but dropped yesterday. I'm sure I lost my mucus plug last week, my boobs have been leaking a lot as well. I'm measuring big for the weeks I am. Last night I had what I thought were contractions they were every 30mins for 2 hours but then they stopped. Iv had Brixton hicks for a few weeks now but these were very different. I have been constipated since day one of my pregnancy but last night had diarrhoea. Could all this be a sign of my baby girl being early? Please help I'm so confused.