So it's 16 weeks since our DS entered the world. Sorry if TMI but we've had sex and, to be frank, it feels bloody uncomfortable. I hoped after the first time it would feel better the next time, but it didn't. It's not scream-out-in-pain bad, it's just not enjoyable and i feel awful about it because we used to be very intimate and enjoy it. I love DH more than anything, but i just don't feel like it and it's like i've almost developed a fear of doing it now. I find myself turning him down a lot and making excuses. 
Nobody told me it wouldn't be enjoyable any more, or how uncomfortable it would still feel 4 months on from the birth.
Is this normal?
Does it get better?
When?