It depends on what your intentions are. If you want more and more and more then don't take him out. But quite honestly I would suggest taking him out as you need to think about homes for all of the babies.
robo's are not nearly as prone ... However the mother willget pregnant again within 24 hours if he is not removed
I would urge you do more research hamster breeding is actually serious toomany dont take it that way which is part why needlessly thousands of hamsters die each year. I am not trying to be rude i use to breed mice but bonding ith them is so much better than watching them raise litters