Drew Barrymore would be ''mystified'' to have a son.

The 'Blended' actress would love to have a baby boy but after caring for daughters Olive, 20 months, and Frankie, four weeks, the 39-year-old beauty - who is married to Will Kopelman - thinks she would be clueless.

She said: ''I feel like if my husband and I try to have a third, I would be mystified if we have a boy, because I'm so unfamiliar with boys.

''I love men, and I feel like I would have a lot to learn from my son if I was ever lucky enough to have a boy.''

Drew thinks it is ''karma'' she has two daughters because of the relationships she has with her male and female pals.

She told People magazine: ''I'm a guy's girl, and I've never been overly 'girlie-girl,' but I love my girlfriends so much, so it makes all the sense in the world that my karma is to have two daughters.

''I have such an Achilles heel with the mother-daughter relationship. I just get girls.''

The 'Charlie's Angels' star also praised will as an ''amazing'' father and says he has made it easier for her to return to work and promote 'Blended' because he is so supportive.

She said: ''Will is a great father!. He is amazing, and we all have each other's backs. When anybody has to do something, somebody is there to fill in. We also spend all of our time together.

''Listen, it's two to three weeks of work and I'm going to be back in sweatpants until November! I am literally never without my family. My kids go with me everywhere, I'm a stay-at-home mom, I'm a work-from-home mom a lot of the time, so to get out for a couple of weeks is actually kind of okay!''