Were can I find a nice white lace dress for not a ton of money in maternity getting married in June…

Not sure where you can look I'm thinking a place like Dillard's or a department store like that. The best thing you can do is probably do a search for an empire waist dress which will work best being that far along and it may not need to be maternity necessarily since empire waist dresses are pretty forgiving and you'll have the extra length.

Google white lace maternity dresses and click on the shopping tab, it shows alot of cute ones in different price ranges

Amazon there r many like this one http://www.amazon.com/gp/aw/d/B0118YF68M/ref=pd_aw_vtph_193_lp_3?ie=UTF8&refRID=1Z4BTKSGT6M4NW043384

rue21 is cheap and always has cute dresses but they aren't maternity