Khloe Kardashian's BFF Malika Haqq announced yesterday on social media that she's pregnant - and has many people wondering who the baby's father is??

Malika, now single, used to date rapper OT Genasis, but the couple split up early summer. So more than likely, the child is not his - although possible.

Most people on media on social media, however, think the child could belong to Khloe's brother, Rob Kardashian. Rob and Malika have had an on/off relationship for many years and a rebound romance following her break up seems very likely.

In June Malika, 36, revealed to the world that she had split from her longtime boyfriend O.T. Genasis. In her social media post, she shared a sexy photo of herself wearing a white, lace, see-through dress and simply captioned the Instagram pic with the word “Single.”

Malika later confirmed the rumored split to PEOPLE magazine, explaining that due to the nature of Genasis’ work, “it was hard for them both give 100 percent.”

Here's Malika now announcing her pregnancy:

“I have always wanted to be a mother and it’s still a little bit surprising but I’m overjoyed!” she tells PEOPLE. “I’m a very emotional person anyway, but this is another heightening of emotion … I feel really good about where I am in my life being pregnant now.”

Haqq, who prefers not to disclose the father’s identity at this time, first learned she was pregnant after partnering with Clearblue and monitoring her body for several months with Clearblue’s Advanced Digital Ovulation Test and realizing her period was three days late.