Quick question 🙋🏽‍♀️

Is it true that every time you concieve the chances of having a boy/girl is REALLY 50/50 ? Like everytime ? Im just asking because I have two daughters pregnant with my third and im REALLY hoping for a son this time my husband has only been shooting out girls 😣 dont wanna sound ungrateful I just want my boy lol 🤞🏽 so i can be DONE 😬 & im a be heartbroken if my husband is gender disappointed again ☹️