Pcos and metformin

Tasha

So I got pregnant a month after being put on metformin and then miscarried in December of last year at 8 weeks. I've been trying since and still nothing so I went to a infertility doctor today and he upped my metformin dosage and informed me that I do have pcos. So now I'm wondering if this new metformin dosage will do the same as last time and I'll get pregnant quick lol. Looking for some feedback. Thanks!