Wa `alaykum As-Salamu wa Rahmatullahi wa Barakatuh

Having a baby is a value in Islam in which you can take medicine for that and break your fast. If you can take them after Maghreb and before Suhoor it is better by approval of your physician of course, if not you can take them during day and make up days later.

Intercourse should be done Only during night time. Ghusl can be taken even after Fajr has been called but make sure to pray Fajr before sunrise.

Almighty Allah knows best.