Confused

So I got my last period on 23rd feb (nearly 6 and a half weeks ago) according to glow I was due on 30th March but nothing yet,

I usually suffer with sore breasts and period cramps for about a week sometimes longer before AF but this time I’ve literally had nothing.

There has been a few days where I’ve felt AF would come that day but never did, my breasts have only just started feeling a bit sore today but they feel different than usual, my right one feels almost like it’s burning.

I have had like stretch/pulling type pain in the left side of my lower stomach and some random pains through my right side of my stomach on and off but they do not feel like period pains.

My lower back has been very tender especially in the right side for weeks now.

I know the only way to be sure is to test but I am so hesitant to do a test as usually I seem to do them and then get AF later that day so really trying to hold off as long as possible.

I guess I just wondered if anyone has experienced anything similar to this? Is pregnancy highly possible or am I going to start AF?

Also, when does breast tenderness usually start in early pregnancy, could it start later rather than straight away? Sorry for the lengthy post, I’m just confused and wondered if anyone can relate.

Thanks so much in advance x