How bad is it to visit spouse with just Nikkah and not ruksuti?

Me and my husband are in ldr, I really want to go visit him( I have the means alhumdullilah) but my parents won't let me until we have our rukhsuti done, is it only cultural thing or religious as well? It is taking a toll on my mental health. We knew each other before Nikkah for long. Should I just go without telling my parents how bad is it? It is very difficult for us to visit Pakistan at the same time. P.s I don't live with my parents in Pakistan