Hives???

Mikayla • I'm 23, married for 4 years, we have a beautiful 2year old little girl! she is our universe!!!! I'm a cancer in a home with two Capricorns!!!! Baby #2 due may 2019!
Is this hives?? Can pregnancy cause hives?? I though it was mosquito bites but no then I thought maybe flea bites but it isn't it just came up out of nowhere and I have a few patches over the past few weeks that came up then just went away. Any ideas???