Cycle returning after breastfeeding

Hi all,

I stopped breastfeeding my oldest son 7 months ago. I got my first period 11-14th Jan. From around 3 weeks ago I have been experiencing nausea, headaches, aching hips, joints, lower back,
tiredness, etc etc. I was convinced I was pregnant but took 2 hpt's 6 days and 8 days ago & both were bfn. I then waited for my period to arrive and had cramps etc and really felt like it has been coming. On Thurs night I had light light pink tinged cm and then more again yesterday and thats it. Has anyone had this experience after their cycle getting back on track after birth/breastfeeding? I certaining wouldn't mind being pregnant but it's annoying not knowing! Thanks :)