Hilaria Baldwin shares before and after baby photos with newborn daughter

Hilaria Baldwin is opening up about her postpartum experience.

On Thursday, the 38-year-old shared two "almost identical" photos that showcased her newborn daughter, Ilaria.

In the first photo, Baldwin cradled her baby bump from when Ilaria was still in her stomach. In the second snap, the mother-of-seven cradled her four-week-old daughter, whom she shares with her husband, Alex Baldwin.

The yoga instructor shared that while pregnancy and newborn phases can be challenging, she treasures these milestone moments.

"I treasure these almost identical photos that [Eroula Dimitriou Photography] takes when baby is inside and out," she penned to her 988,000 followers. "As much as pregnancy and newborn phases can be hard, I’m so happy I have these to remember for always."

Baldwin also opened up about breastfeeding and the physical changes her body has experienced due to pregnancy.

"Even the uncomfortably huge…" she wrote alongside a baby bottle and cow emoji. "Literally beginning from my neck. Thank goodness four weeks later, they’ve calmed down. Oh, nature and your ways."

Baldwin added that she plans on sharing her breastfeeding routine with her fans.

"If you guys want, and breastfeeding is what is right for you, I’ll share my breastfeeding, pumping and milk storage routine that I do. I’ve figured out quite a system that works for me by baby seven, through trying many things," she said.

In the comments, fans loved Baldwin's "beautiful" maternity photos.

"Very beautiful photographs. Before and after," a fan wrote, while another added, "the joys of producing milk…Beautiful."

"Such a great idea for a photo! You look beautiful!" commented another.

"Beautiful moments in motherhood," someone else chimed in.

Earlier this week, fans applauded Baldwin for "slowly" getting back into exercising less than one month after having a baby. Baldwin posted a video demonstrating an ab exercise she uses to rebuild her core.

"Slowly working on my core," Baldwin captioned the clip of herself planking in a wide-leg denim jumpsuit.

She explained that after pregnancy, she likes to "reintroduce" ab exercises into her routine to help prevent her abdomen from splitting.

"I like reintroducing abs into my routine with these exercises because they encourage pulling the rectus abdomen together from the pelvic floor, rather than splitting apart in more superficially targeting workouts," she wrote.

"I do 10-20 of the running forearm planks, then five-10 lifting my hips up. Collapse like me, or stretch at the end (that would be better)," Baldwin concluded.

Let us know what you think by commenting below and tweeting @YahooStyleCA! Follow us on Twitter and Instagram.