Thanks for your query.
It depend upon your condition ,pregnancy
needs very careful watch for any fetal malformation.Level 2 or level 3 ultrasound
scan at 18- 20 weeks can rule out most of drug or fever
induced malformation .
as drugs taken at perifertilization has less damage than drugs taken at time of organogenesis .
If your health permits and you are in dire need of baby ,you can take risk to keep baby up 18-19 weeks with regular investigation & vigilance.
‘Hope I have answered your query, I will be available to answer your follow up queries, “Wish you Good Health and trouble free speedy recovery”