I Recently Got My Shot For An Opiate Blocker And

i recently got my shot for an opiate blocker and I've been clean off heroin for 5 mos now I found out I'm pregnant and believe smallest a month along I'm also on Wellington and prozac and have highbloodpressure and also take medication for it and im37 yrs old,this is my 7th birth and just worried about complications and what they will b and I can do to lesson those complications,my on appt isn't til March 3 rd and its stressing me horribly,and y advice would be greatly appreciated,thank you so much for your time and advice