trying to resolve confusing situation - Jan Jonsen

Here is a marriage record for Jan Jonsen/Stine Andersd - marriage - engagement is Oct 251793 marriage is Jan 25 1794 same page. Here is a burial record for a stillborn boy - Jan Warme/StineAndersd - death record - bottom right Here is a death record for a Jan Warme no age given. May 11 on the left side Here is 1801 census referring to Jan Warme. 1801 Are Jan Jonsen and Jan Warme the same person? In other words did Jan Jonsen begin calling himself Jan Warme or being referred to as Jan Warme for some reason. Or are they 2 husbands for Stine? One more bit of info - birthchristening of son Ole to Jan Jonsen/Stine in 1802 - so Jan is now Jonsen again - Ole another child - in 1806 Marthe June 14 right side