The couple stunned family and friends by announcing the fact she was pregnant with Rob's child just weeks after becoming engaged earlier this year (16), and the model and entrepreneur admits she is having a blessed time of it so far.

And she's keen to keep it that way, so she has ruled out a 2016 wedding because she doesn't need all the drama.

She tells U.S. news show Extra the couple will "definitely" exchange vows next year, adding, "I don't want to be pregnant while the wedding is going on - too much stress, and I don't want to do anything that stresses the baby out, or myself."

Blac admits her second pregnancy is going very well so far, explaining, "I haven't been sick, craving anything. I'm just pregnant, I'm all belly."

She also told Extra the couple knows the sex of the baby, but she's not revealing it just yet - and she does have some names in mind.