Meeting one's fiancé

Q: Is it haraam for a woman to meet her fiancé before nikaah in the presence of his entire family but without any mahram from the woman's family?Actually, I want to know if it is totally haraam or just not permitted in Islam?

Salaah for a woman whose water broke and is in labour

Q: I would like to know what is the ruling on this particular case:

1. When a pregnant woman's water has broken and she has a bloody show, is salaah that she did not make yet now need to be made up?

2. Women were also advising another pregnant woman that until the baby's head has partly come out, she must make salaah that is due at that time as well as if dilation has been checked she must make ghusl (if she needs to make salaah) as the nurse/doctor has put their fingers inside. What is the correct view?

Musaafir mistakenly performing 4 rakaats Zuhr Salaah while leading a congregation for an entire week

Q: If a musaafir mistakenly leads a congregation in Zuhr Salaah for an entire week whilst performing 4 rakaats, and only realizes after that, then what is the status of the other musaafirs' Salaahs - those who performed salaah behind such an Imam?

Will their Salaah be valid/complete due to the passing of time?