Hemorrhoid and pregnancy

Mary • Married 5/26/12. Police wife. Emergency room RN.
Hey ladies, sorry if TMI but I believe I have my very first hemorrhoid (that I know of)... So the past couple days I've had pain like razor burn type, I tried shaving quick about a week ago and thought I just irritated the area as it was growing back.. So tonight I started having blood on the toilet paper after wiping.. I used the mirror in the bathroom and sure enough that's what it is... So it's just slightly irritated and bleeding a little after bms.. Is this abnormal for only 20 weeks along?! I have been constipated this week so I can't say I'm surprised. Any advice ladies that work for you???