Is GABA safe while trying to get pregnant and during?

I have horrible sleep issues that have actually become worse in the last month. I do 64 oz celery juice daily for my RA and HMDS asks the usual vinergy supplements. I’ve tried magnesium cream, lavender essential oil, melatonin, lemon balm and I cannot fall asleep, I’m always awake at night lying there… it’s awful! And I’m trying to conceive and if I can’t get any sleep I know I will never ovulate or get pregnant again. Any tips for getting sleep? I just ordered vinergy gaba but not sure it safe while trying to get pregnant and during pregnancy.