There's just no stopping Blake Shelton and Gwen Stefani as a couple. The two are reportedly trying very hard to conceive and start a family of their own.

Two years into their whirlwind and surprising romance, the country music icon, 41, and the rockstar-turned-fashion mogul, 48, are allegedly moving on to the next phase of their relationship by adding a baby.

The two singers have left their respective partners; Shelton was married to country superstar Miranda Lambert and the couple separated in July 2015. Stefani, on the other hand, ended her 15-year marriage to rocker Gavin Rossdale a month later.

A source told Us Weekly that the pair knows that they'll get married one day but the main thing for them now is for Stefani to get pregnant.

The former frontwoman of the band "No Doubt" gave birth to her youngest son Apollo at the age of 43. She and Shelton, a nine-time Country Music Association Award winner, are reportedly confident that they'll be able to have a child together.

Shelton has longed to be a father. His wanting to start a family was allegedly one of the factors of his eventual separation with Lambert. When his budding romance with Stefani started to become serious, he told the female rocker about his plans of being a father and Stefani was willing to try.

In spite of the fact that it's taking the couple some time to get pregnant, they have remained solid and continue to be each other's biggest fan.

According to women's health experts, anything is possible when it comes to conceiving and giving birth to a full-term, healthy baby. It was noted that the age of the mother is the most important factor in the likelihood of getting pregnant. As women's fertility declines with age, it is suggested that they freeze their eggs and use when they're ready to conceive.