I would like to know how easy is it to get a woman from the Philippines here if she has your child with her

She would likely have difficulty obtaining a visitor visa. The consular officials would suspect she has immigrant intent and refuse to issue a visa. If your intent is to marry, you could file a fiancé visa petition on her behalf. This visa allows her to enter the United States to marry you and seek permanent residence. The process is not easy as several requirements need to be met. You will need to establish that you have met in person within the past two years, are in a bona fide relationship, and intend to marry within 90 days of her entry. You can read more about the process at http://myattorneyusa.com/k-1-and-k-2-visas-for-fiancees-and-derivatives.