Kaley Cuoco and Tom Pelphrey are celebrating their first Valentine’s Day together.

On Tuesday, the 37-year-old actress took to Instagram to pay a sweet tribute to the 40-year-old actor, marking the occasion. She posted a photo of them together as they looked into each other’s eyes, holding hands and all smiles.

Cuoco wrote in the caption, “Happy Valentines Day to the man that makes me smile this big every single day,” alongside two red heart emojis.

The “Flight Attendant” actress also noted that she is “grateful to be on this life adventure together, my love!” and tagged the “Iron Fist” actor.

In its report covering the special tribute on social media, People recalled that this marks the two celebrities’ first Valentine’s Day together after debuting their romance last year. It is also their first since announcing their pregnancy in October.

Tom Pelphrey and Kaley Cuoco made their relationship known to the public earlier in May.

The “Ozark” actor and the “Meet Cute” actress took to Instagram to debut their romance, posting several photos of them together.

At the time, E! News noted that one of the images features Pelphrey kissing Cuoco on the cheek, adding that other snaps show them posing together in Polaroid photos.

Prior to the debut of their relationship, Kaley Cuoco opened up about her thoughts on love, relationships, and marriage during an exchange with Glamour for a cover story.

The “Big Bang Theory” alum shared with the outlet, published in April, that she “will never get married again.”

Even so, she pointed out that she “would love to have a long-lasting relationship or a partnership” as she still believes “in love,” adding that she likes “being someone’s partner and having that companionship.”

Cuoco, who was married to Ryan Sweeting from 2013 to 2016, tied the knot with Karl Cook in 2018. However, the marriage ended three years later, with her filing for divorce in September 2021.

Meanwhile, months into the relationship with Tom Pelphrey, the “Wedding Ringer” actress announced their pregnancy via social media.

Kaley Cuoco revealed that she is expecting her first child with the “Guiding Light” actor in October.

On Instagram, the actress told fans and followers that “baby girl Pelphrey” is coming this 2023 before noting in the post that she feels “beyond blessed and over the moon.”

It remains unclear when exactly Cuoco and Pelphrey will welcome their first child together. But, she keeps her fans and followers updated with her pregnancy, sharing glimpses of the journey via social media.