Period late... when to do a test?

[awakemysoull]

Hi

I had dd2 15 weeks ago. I have had a period since then about the end of august. I haven't had one since.

I've worked out that in about 3 weeks late. I took a pregnancy test a couple of weeks ago and it was negative.

I have been very very careful and used condoms (been waiting on period so I can have depo) but I'm half sure a couple of them may have burst.

When should I take another test?

I'm tempted to just go buy one this evening but I don't want to waste money iyswim

They are normally accurate from the day after you miss your period, so definitely if you repeat now and get another negative you should be reasonably confident.