Help? ๐Ÿ˜ฃ๐Ÿ™‹๐Ÿผ

So here's my problem.. I am now 3 weeks late for my period and I have been having bloating, tender breasts, head aches and fatigue. I have been so scared that I might be pregnant but thing thing is I've done 3 pregnancy tests(one for ever week I have been late) an they are all negative is this normal? I just need some peace of mind ๐Ÿ˜”