Can The Disc Bulge Be Related To The Pregnancy Fall?

i fell 3 years ago whilst i was 32 weeks pregnant. initially i was having a lot of trouble with ligament damage to my ankle which i badly sprained at the time. over past 2 years i have had lower back pain rad into my rgt hip. i was told this was sciatica. i recently had an MRI which shows a disc bulge and im wondering if it is linked to my fall it is also my rgt ankle that is affected. my hgt is 5"3, wgt 98kg and i am 34yrs old.