Salamba Sarvangasana + Halasana
Both asanas soothes the nerves according to Geeta Iyengar. Supported Shoulderstand also keeps the brain calm and quiet. I love how I can feel baby kick while in this posture. Halasana keeps the spine firm. "Both asanas help keep a mother's health in perfect condition."
(pg. 274 yoga a gem for women by Geeta Iyengar)
Special thank you to @chantalederyoga for sharing this variation. I wish I was in NY to take classes with you, but grateful that you have shared your practice online. And congratulations on welcoming your baby boy into the world. Happy four months Josef!