Dear Doctor, I Had A Miscarriage Last Feb Due To

Dear doctor,
I had a miscarriage last Feb due to blighted ovum at 8 weeks (only gestational sac seen n ultrasound)
I have tsh 13 now one year back it was 7 and I took thyroxine 25mg but I stopped having the tablet after becoming normal,but I didn't know that I was not supposed to stop the medicine even after becoming normal level..

After conceiving only I again took thyroid test and it became tsh 13 from 7
now taking thyroxine50mcg (now only started taking thyroxine after d&c)

My gynaecologist told me to increase the dosage of thyroxine from 25mg to 50mg..am taking thyronorm 50mcg now from Abbott pharmaceuticals..is that the right medicine ???please advice

I have also vitamin d deficiency and I have read that it causes ovulation disorder after that i started taking a vitamin D supplement advicedby a doctor and the same month I ovulated and conceived...I have missed that vitamin d prescription because I shifted to a new place..can u suggest a vitamin d tabletwhich helps to ovulate..

Can I continue vitamin d and thyroid tablet even after conceiving???