Possible pregnancy?

Soo I've been worried that I might be pregnant for a while now. I'm not quite sure when my missed period would have been, I'm not really good with keeping track of those things. My last period started on the 16th of June.

I've had what seems a lot like a period only much lighter. I read online that some pregnant women experience implantation bleeding for about 2 days around the time of their missed period. but what's going on with me has lasted about 4-5 days, and counting.

I've also been feeling nauseous lately, (I've only actually thrown up once, though), and have been VERY emotional. I'm sleeping more than I normally would as well.

Could I be pregnant? Or is it something else?

And another thing: when would be the best time to take a home pregnancy test?

You should get a pregnancy test because it sound like you could be pregnant. Either that or your mind is playing with you. You could wait a little bit longer and then take a home pregnancy test.

you might be pregnant,
but you could be thinking about the situation to much and maybe its all going to your head.
but take a pregnancy test and then you will know
hope this helped:]