LoveyJA

Ghana engagements usually count as marriages.... in my opinion they have viewed your relationship as a marriage. Not an engagement 

Yes, but there s certain criteria that needs to be met also..

USCIS does not update their website constantly. What we see on their processing times page is usually not the most current. 
 
As for the case status page, their system has been buggy for months now and a lot of people are still stuck at 'case was received' even after getting NOA2. However, it's been reported that the case status page does update accordingly when a case gets RFE-ed. 
 
When you refer to the VJ processing times, know that it only shows what's entered into the timelines here. And VJ applicants are just a small percentage of the USCIS application population. Therefore, truly, it is only accurate to a certain extent.
 
Presently, I-129F NOA2 is taking 4 months ish. Some VJ April filers are still waiting for their NOA2. VJ May filers have barely been issued NOA2. Due to that, looks like VJ May filers will only start receiving NOA2, denial or RFE in September, probably all the way up to October and of course some cases would be stuck beyond that.
 
To stop driving yourself crazy, check the May filers thread sporadically and don't compare your case to others. This process is very case by case basis. Otherwise you'd get upset, angry, depressed etc. Instead, focus on prepping documents that are needed at the K-1 interview stage and start familiarizing yourself with the AOS process. That would be time better spent
 
Just for the record, a US petitioner does not file a NOA1. Instead, they file a I-129F. NOA1 is issued by USCIS to acknowledge receipt of a I-129F petition that they received from a US petitioner. NOA2 is issued when a I-129F petition is approved. 

I can tell you that the USCIS is not accurate. We filed our NOA 1 in April (Notice date of 4/15/17) and we got our NOA 2, in the mail, with a Notice Date of 8/17/17 (almost 4 months to the day). The USCIS site hasn't updated our case yet. It still says "Case Received". Having said that, I know that a lot of folks on the April filers page haven't gotten anything yet. It's frustrating how things are going, for sure. Hang in there. It'll come.