Am I right to be upset?

So we've recently found out we're pregnant with our 2nd baby. We are only 6 weeks so still very early. We have a history of fertility issues and it took us a long time to conceive our now 15 month old. We suffered a traumatic loss before our 15 month old and we have always said we will tell our families early days in pregnancy as we want the support if anything happens as we definitely needed it before. We've just told our families about our news and we have been met with silence and eventually a congratulations and comments about how young our girl is. We have never made it a secret we wanted two close together and we have been so lucky after everything to catch this quickly. I guess I was hoping for more excitement from people. Maybe I'm being too sensitive?