When is a good time to take a pregnancy test in the morning or anytime?

Diana

Hello ladies, I have irregular periods, so my play period was September 24th and form there I haven’t gotten my period yet. So me and my husband had s**.! Last night and he didn’t pull out so then for the safe side we went to buy me the plan b pill I took it right now and plus I took a pregnancy test and it says negative right way. I look it up and it says it’s better to take a pregnancy test in the morning but when I found I was pregnant with my son I took the test at night and it right away it says positive so is there a certain time of day I should take the 2nd pregnancy test?