Child birth in family - Parents want worship and chanting to be stopped - what to do?

“Some close relative of mine has been blessed with a new baby.
My parents have told we should not go to temple , or worship .
Also they are doubtful about whether we can chant ! 
Please clarify prabhuji”

Since you are staying alone yourself in Pune Pr and there is no Social pressure from family, I suggest you continue chanting, coming to temple and associating with devotees. You can say Yes to whatever your family is proposing - no need to tell them. However if you think they will be open minded to listen then you can try to help them understand politely of how not visiting temples & not worshiping lord if a new child is born is one of the Vedic rituals & it’s clearly mentioned in BG 2.52 that the ultimate goal of following vedic rituals is to reach Krishna. Devotees have already achieved this goal by being Krishna consciousness & reaching to Krishna directly. So therefore there is no need to follow the rituals as the goal is already achieved

Also giving reference from 9.14, you can let them know how Krishna is directly saying to chant constantly & also he has mentioned no rules for chanting his name.

Still they do not agree Prabhuji or are not interested to hear then you can make them hear from a senior sincere devotee. Speaking of from my experience I have seen people getting convinced easily from them cause of their mercy.
Last option would then be not force them to agree as this would turn situation bad.

You can least make a compromise with them.
For example, won’t visit temple & not worship but will continue to chant & read books.
Hare Krishna !