Hi G.,
I have 2 children (3 years & 16 months) and am 4 months pregnant. Like you, I also work full-time. Life is insane and here is how I have learned to semi-cope (with the advice of my counselor of course). Maybe some of these ideas will help you-
-Run your house like a business. It's imperative you stay organized in order for it to function well, much like at work.
-Know your limits. I finally hired a cleaning lady because I couldn't keep up with the deep cleaning. My time is worth way more than I what I pay her.
-Stop picking up after your husband. He is not one of your children and you are not his mother (such a huge revelation for me b/c before kids I always picked up after him). If my husband leaves his clothes on the floor, they stay there. If he doesn't clean his stuff up around the house, I make a pile in the hall. Once it falls over, he picks it up. He is slowly coming around and seeing that he needs to pick up.
-Talk with your husband. Tell him what you need from him and why. He can't read your mind and you shouldn't expect him to. If you want him to make dinner a couple nights/week let him know it would really help you out. If he starts pitching in, I bet you would be happier and more affectionate toward him (which what guy doesn't want?) and a great cycle is born.
-Create a schedule. Each week my husband & I plan out the week. What we are eating, who is dropping off at daycare, who gets a kid's free night, etc. It is simple and it gets you prepared for the week.
-Put yourself first. That doesn't mean become selfish. It means take care of yourself first, your husband second and your children third. My life has completely changed since I realized this. If I am happy, everyone in the house is happy. And if my relationship with my husband is in a good place, the children feel it and they thrive as well. Some moms may disagree with this way of thinking but it works for me. Just because I have children doesn't mean I'm not me anymore. Sure my priorities have changed but not my basic needs (affection from my husband, friends, yoga, books, etc)
-Find a core group of lady friends, Moms or not. These ladies will get you through the good & bad times and will always be there for you. I can't put into words how much my friends give me emotionally. They may challenge my ideas and parenting skills but they also give me unconditional support and love. I say not moms b/c sometimes it's nice to talk with someone about something other than cheerios and sippy cups!
Now for you 21 month old. They are crazy, fun, precocious and his energy is not going away anytime soon. Give him a ton of love b/c he will no doubt feel second fiddle once his brother/sister is born. Schedules also work really well for us (now that my son is 3). If he knows what he's eating for breakfast & dinner, what his routine will be before bedtime(books vs. puzzles) he doesn't fight us as much.
Nights are so hard b/c after work I'm exhausted and I just want to sit on the couch. However, it's time to slip into mommy mode and take care of everyone, including my husband. I remind myself constantly that my boys will only be this little for a short time and I try to have fun and be silly with them.
I hope you find something in here that will help. Know you are not alone, we are all struggling and doing the best we can!