New mom, second baby otw

Hey ladies, i have at 14 month old and i feel like i just completely let myself go 😩 i need tips, advice, etc. I’m 17 weeks pregnant and i feel big as hell, how do you love yourself again after kids? I see sooo many hot moms and I’m just like omg how do you guys do it? 2 kids AND keep up with yourself? My husband and I don’t even have sex anymore I’m always complaining about my weight and he says the gym and healthy eating are my only options right now but I honestly don’t think that’s it. I’m 4’8 158lbs imagine what that looks like..a short stuffed girl. I’m 26 I can’t lose myself…I want better appearance but it’s also costly…hair nails, lashes etc. and bomb outfits. what’s the secret? I see yall look good all the time