doggy style not working?

So I've been a virgin for 22 years till I got married and I can't seem to do doggy style 
My husband says I'm to tight and it won't fit 
But I don't think that's it cuz it fits in any other position 
Did anyone else have this problem and how did you fix it 

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