Maybe you would like to check, cos i read that the placenta takes over partial of the hormones production starting from week 10, and most people stopped after first tri.I'm still on it at 15 weeks! First Trimester doc gave me Duphaston. thankfully i'm not affected by the pills. but next time i see her i shall ask abt it since most ppl only take it in first trimester? or maybe coz i'm not that stable yet..hmm.. But from what she tells me, there's no harm to mum or baby when we take these hormone pills/jabs.
Do check cos its not cheap, my fees without the pills and folic is $90, with both pills is $120, and the pills is for two weeks.