Im a tiger feeling a bit out of place is my sheep husband falling out of love?

We been together for 12 years now. We have 3 kids first born sheep, rooster, pig. Now I'm prevent with a snake and feeling sad and depress fill like my sheep husband and I are not being how we used to be. I know he's a yin and I'm a yang so were different but we make each other whole. We both want the same things in life and want the best for are kids. But lately things been different since I found out I was prevent again. What's going on?