Sex on my period

My husband and I just had amazing sex. I'm on day 2 of my period and he didn't pull out or use a condom. We would be happy if we had a bigger gap between children but we are leaving it open to God. However my mother in law is very adamant we don't have any more children any time soon. I'm scared of getting pregnant ever again now because I am afraid we will have no family support :( we currently have a 14 month old little boy