weight loss after baby

so I am currently 31 weeks with baby #2 due in march. My birthday is in May I have been planning this since before I was pregnant , but I know I won't look skinny or any of that but do any of you ladies have tips on how to lose weight after a baby like fast lol. I was thinking of just juicing it until my birthday like 1 meal a day and 2 juices and some snacks also lots of cardio . but my husband is telling me I need food . any tips ?