can't get hard

a month ago me and my boyfriend tried to have sex. it was the first time for both of us and we were nervous but he couldn't get hard. The other week we tried again, 3 times in one day but it just didn't happen? 
We often do oth r sexual things and he can stay hard for that but I just feel as if it's my fault?
Neither of us know why this happens 

Glow Resources

Let’s Glow

Glow is here for you on your path to pregnancy

Glow helps you navigate your fertility journey with smart tools, personalized insights, and guidance from medical experts who understand what matters most.

25+ million

Users

4.8 stars

200k+ app ratings

20+

Medical advisors