Late Period

So last month I was late by 6 days but I realised I hadn’t worked out my actual cycle date. Now I’ve worked it out (30 days) I’m now 5 days late and I’ve not been able to do a no 2 in nearly a week. I’ve had relatively bad cramps, headaches constantly, painful boobs and backache and I feel sick whenever I’m not eating (haven’t actually been sick yet tho)

Are these symptoms of pregnancy can someone lemmie know?