Spouses missing Salaah due to having intimacy

We are a newly married couple (1 year). Every time we get intimate, we are missing our namazes. Even though we are trying really hard to control our desires, even if we get intimate every 4 days. My wife because of her migraine, sinus and long hair delays ghusal which makes me feel bad as because of me she is missing her namaaz. How do you recommend we should control our desires. Please tell us possible solutions.