Can we use Solopose .5 MG, Clafronil and Foster 5 Mg tablets during pregency

The first two are psychiatric drugs with Indian brand names. They should not be taken unless the doctor caring for the pregnant woman says it's OK. Each woman's health is a different situation, and virtually every drug has certain risks, while someone is pregnant or not, that are a trade-off with the need to take them.
I do not know of Foster in the drug name list.