i walk every day for 2 miles is this good or too much iam 6 1/2 months pregnant?

[MommY 2 B Of a BoY]

i walk almost every day for 2 miles sometimes 4 miles and i think its too much my husband kinda pushes me to go because he says that it would be good for me and the baby and easier through labor what do you think is it bad or is it good let me know please... i dont have a job all i do is clean my house and go walk but what do you think.