Should i be concerned? :(

I started leaking colostrum since 18 weeks and even expressing milk on my right chest. Just a few weeks back i was diagnosed with GD, so i started to watch everything i eat and was strict about my diet to keep my blood sugar within range. Since then, i have stopped leaking colostrum and even expressing milk. Should i be concerned that i might not be able to express milk when the baby comes? :( im 30 weeks in now #firstbaby #advicepls