are we overreacting???

My husband and I just had a miscarriage about a week and a half ago. My husbands brother and his wife are pregnant. She was only 2 weeks further along than I was. Well originally my husbands parents were supportive. But after the first two days they told us we needed counseling (for crying) and that it's "just apart of life". But every time we see them (along with his brother and his wife) they start screaming and talking to her tummy and loving on her right infront of us. The main conversation is about their baby and her whenever it's the 6 of us or when it's the 4 of us she brings it up and talks about it just as if they were there.also 4 days after my miscarriage my MIL said I needed to lose weight and sent my DH and I links about being overweight and having PCOS.  I know they are thrilled that they're pregnant bc they want grand babies but we feel it's super insensitive. Are we over-reacting? And we brought it up to them gently about why we haven't really spent time with them and it's because we only ever hear about their baby when we're with them and that we're trying to take time to heal. But they pretty much said that we need to learn to get over it. Are we over reacting after a week and a half??