Will cut a long story short and hope that any seasoned travellers may be able to help me! And before the suggestions of 'ring the airline', I have already today. However, the lady I spoke to was foreign and we struggled to understand each other so I'm calling out to you lovely lot for some advice 
Flying to Florida this week - Manchester to Dusseldorf, Düsseldorf to Newark, Newark to Orlando.
Same airline taking us on the first 2 flights, then a different airline for the last leg.
Once I've checked my luggage in at Manchester, will it have to be collected and checked back in again at Düsseldorf? Or can we forget about it until Newark?
Worried as we don't have much time between flights and will really struggle if there's a delay!
I appreciate no-one may know for certain but hoping someone will have flew similarly 🤞🏻