Wedding & baby!

My Fiancé & I have been planning for our wedding for a year now but then we had a surprise..I found out I was pregnant and I’m due the end of this month! Our wedding was planned for May of this year but now I’m just feeling nervous that it’s going to be to much with a newborn..would it be a good idea to set the date back to either July, August, or September my baby will be atleast a bit older..& I would atleast like to try to lose weight... ugh