Methotrexate

Hi there! I'm 23 years old almost 24 my husband is 24 as well. I have Crohn's disease and RA. I currently take entyvio for the Crohn's but it doesn't help with the RA. My rheumatologist, oncologist and gi are pushing for me to try methotrexate but I would really like to have at least one child before I start it. My husband thinks we aren't ready for a child (or well he isn't) I'm just in so much pain from the RA. If you have been on methotrexate have you gone on to have a healthy successful pregnancy? How long did it take for you to conceive?