Hello;
welcome to HealthcareMagic
Folitrax is
Methotrexate and is used for your auto immune problem and you can continue.The common side effects are stomach upsets;acidity;
liver problems ;menstrual irregularities or related problems;rashes;renal toxicity;decreased body resistance etc.So see if you have any of it.As for the part of conception please complete the course of medicine and then discuss with your Gynaecologist.
Thanks