4weeks Pregnant but no symptoms?

Ellen β€’ 30yrs old. Happily married. Have a 13 year old daughter. Suffered an ectopic pregnancy in Nov 2016 .. Pregnant with rainbow baby - Due August 2019 πŸ’™πŸ‘ΆπŸ»πŸ’™πŸ₯°
Hi everyone. Tomorrow I will be 4 weeks pregnant but I'm not experiencing any symptoms just yet. Is this normal? I've been having headaches, tiredness and my boobs have been slightly tender on and off, but apart from that I don't 'feel' pregnant if that makes sense? Anyone else had a similar situation? Thanks in advance 😘