After 26 years of being without my mom, Mother's Day no longer holds the sting it once did. I am blessed with other "mother figures" in my life. I can now look at the ads and commercials and not get teary eyed.
I know several people who are facing that first Mother's Day without their moms this year. That first one is especially tough. it gets easier, but that does nothing to make you feel better NOW. (((Hugs))) to you.
I also know a number of folks who have mothers who are physically here but are estranged for a variety of reasons. Some mothers are simply too ill, addicted, or abusive (both physically and emotionally) for their children to remain in touch and stay mentally, spiritually, and physically healthy themselves. Some of my friends have "adopted" mother figures who help fill the void, but I don't imagine anything can help completely.
Whatever your situation, I hope you have the best day possible.