Understanding that some of you also might be having the same situation only short term contract and not a full time role just wondering if it is ok to take leaves that will be unpaid during it

I think that it might not leave a good impression since you just started. However if you truly need it, take it w supporting reason. Also, make a strong comeback by proving yourself.

Yes, if you have legitimate reasons. To be honest, to each his own. If colleagues judge you for taking leave when you really need to, then they are not colleagues you should mix with too often as well! As long as your conscience is clear, I think you will be fine.