Anyone else OH not wanting sex?

We've always had a reasonably good sex life but since being pregnant it's definitely dwindled.
The last time was nearly 8 weeks ago and the last time before that was 6. 
I'm 30 weeks and thinking I won't have sex until the baby is 6 months old! 
Not sure I can mention anything without upsetting him though. Just wish he'd find me pretty or at least tell me I am. 
I'm definitely feeling insecure ATM. ☹️