l'hermitte's can be related to b12, lhm. if you can get the numbers and units from your b12 test, that would be useful to know. you can have a pretty bad result, from the ms perspective, and they'll still tell you it's 'normal'.
zinc is very useful for a number of things related to ms and also to fertility. it is notably depleted by pregnancy. if your doc will test that too, know that the typical ms findings are well within the 'normal range' - although lower than 'healthy controls'. you want to be at 18.2umol/L for optimal zinc status. it helps your liver function, elevates your uric acid (antioxidant) status, and (i suspect from the biochemistry involved and personal experience only) your ability to absorb vitamin d3.
there won't be much zinc in a multi.. you may need as much as 50 or 100mg per day for a few weeks, depending on your level. you will probably read that supplements over 15mg per day are not recommended while pregnant, without medical supervision (lab testing). it would be good to know where you're at with zinc for a variety of reasons.