motherinlaw and miscarriage

So my husband told his mom about me miscarrying and now she constantly reminds me about it . I'm 30 weeks pregnant now with a baby boy . And she's always like well this is the first one that's gone through . And crap like that just always reminding me I lost a baby ... I was furious my husband told her because she doesn't keep any secrets and tells everyone every little thing . And now she won't let me forget about it ... I'm just so frustrated ... What would you do?