Help please!

Hello

Me and my husband have been trying for a baby for almost a year- we were pregnant back in December but I lost it just after the first month- which was heart breaking.

I’m now 18 days late for my most recent period. I have achy breasts, nausea, back aches, mood swings, insomnia and I need to pee all the time.

I’ve done a (well several) tests.

The Sainsbury’s test came out with a really really light plus sign but I read online they have had a lot of false positives. So I took a first response but the sample was tiny but that came back negative.

Could I still be pregnant?

We’re so desperate for it to happen which I don’t think is helping.

Thanks in advance