6wks post period

Tomi

Hi everyone, please I need help understanding my calender, i'm so confused. I'm over 35 and I have been trying for 2yrs now. My last period was in Sept but when I did the test a day after mu missed period I wasn't sure if I saw a double lines and too scared to do another one so as not to be disappointed, my breasts are heavy and nipples sore, and i'm also having tummy cramps like tightening. Do I need to go for a scan or wait more weeks? Thanks