Are you creating two separate filters? For example in your filter list, does it say:
Content: Type (= MensBlog)
Content: Type (= WomensBlog)
This essentially becomes an AND filter, which means it's looking for a content type that is both MensBlog AND WomensBlog.
You could instead change this to have the data in one filter. Remove one of the filters and click to edit the other one. On this screen, make sure the "Is one of" radio box is selected under Operator and then select MensBlog and WomensBlog. This filter will be an or filter, rather