IUI first time

Jen
My husband and I have been trying for close to four years now and no success . His Sperms are excellent according to our doctor and I apparently have no reason why I shouldnt get pregnant 🙄. 
I ovulate normally, have my period every 28/29 days, everything else is normal.
 Just got my first IUI done today , have anyone experienced Light bleeding after IUI ?? If you did how long did it last ?