Retirement tax questions

I have a similar situation..but I first did roth conversion of 6000$ on Jan 6 which was my after tax money moved from Traditional IRA to Roth IRA. Next I moved my 401k pre tax money to Rollover IRA and then did roth conversion from this Rollover IRA to same Roth IRA on Jan 15. Does 6000$ after tax money fall under pro rata rule