Just a few weeks after Jon Hamm and Jennifer Westfeldt announce their split, rumors have circulated that the newest Emmys Best Actor is allegedly Sandra Bullock's secret boyfriend.

According to rumors, Jon Hamm and Jennifer Westfeldt broke up because fo the "Mad Men" star's alleged reluctance to have children.

"Jennifer always wanted to be a mother. When she told him that she wanted to harvest and freeze her eggs, he told her to do whatever she wanted - but he had no intention of having kids with her," a source reportedly told In Touch Magazine, as quoted by Celeb Dirty Laundry. "She finally realized that her friends and family were right, he's a rat!"

If the "Mad Men" actor refused Jennifer Westfeldt because he doesn't want a kid, then it could be a bit weird that Jon Hamm has decided to become the boyfriend of Sandra Bullock, who has a child.

"Ironically, Jon Hamm is reportedly dating Sandra Bullock - who has a son of her own," Celeb Dirty Laundry previously reported. "So, basically, he didn't want to have children with Jennifer Westfeldt, but he is totally okay with playing step-daddy with Sandra and her son Louis? That's cold."

"Sandra has been single for a super long time, so we couldn't be happier for her - hey, a boyfriend is a boyfriend, right? But we're a little concerned that Jon Hamm could leave her broken-hearted once again," the article continued.

Before being linked to her "Minions" co-star, it has been rumored that Sandra Bullock has been dating a photographer, who she took as a date to Jennifer Aniston's wedding to Justin Theroux.

It has also been reported that Sandra Bullock has been keeping a low profile on her love life because of her son, Louis. Apparently, the Oscar winning actress doesn't want a boyfriend to be involved in her son's life if it's not long term.