Lindsay Lohan $150,000 Richer -- Miscarriage Details to Remain Secret

Double victory for Lindsay Lohan ... she just got $150k to settle her lawsuit against a clothing company -- huge money for Linds -- and now, she won't have to talk about her miscarriage in court.

According to new legal docs, Lindsay's clothing label 6126 struck the settlement agreement this week with D.N.A.M. Apparel Industries, the company she sued last year for $1.1 million.

Lindsay claimed D.N.A.M. failed to pay her hundreds of thousands of dollars for licensing her 6126 trademark for international clothing sales. D.N.A.M. sued Lindsay right back, insisting her druggie reputation made it impossible to unload the merch.

We're told the settlement kills BOTH lawsuits -- and D.N.A.M.'s demand to force Lindsay to testify about the miscarriage ... which she had raised as an excuse for not responding to their lawsuit.