Buggerlugs firstly, congrats on your BFP! cramps are normal but they sound more painful than I'd expect. Drink lots of water and call your clinic for advice. Ohss needs to be ruled out! DS was an IVF/ICSI (2 blasts transferred on day 5 resulted in him!). Definitely call your clinic for proper advice.
Tiny good luck for Tues, will be thinking of you xx
Telling/not telling is totally up to the individual/couple. DS felt like the longest pregnancy ever (IVF so my boss and close friends and close family knew before he was even conceived!).
My boss knew about my MC as it happened during my first week back after maternity leave.
Kept quiet about DD til after the 12 week scan and enjoyed having some time when people weren't in the know.
This time, living in the US, I don't have my close friends to hand so have only told one via email. I did tell my original antenatal thread via our Facebook group as soon as I got my bfp (had to tell someone!). Dh would prefer not to tell his parents but we may tell them Sunday if tomorrow's scan is good. I've told my mum and sister but they'd know if I had a mc. Haven't told my other sister and 3 brothers though. Or any of the in-laws.
I'm not telling my Nct friends yet (via email) as one has just split up from her dp and another died of breast cancer just before Christmas. I don't want to add to the gloom by telling them and then telling them bad news if that happens.
So basically, I'm only telling people I'd tell if I miscarry (and making sure those who know know not to tell anyone else!).
But telling/not telling has no impact on whether a pregnancy is successful or not so if you want to shout it from the rooftops then do!
I would caution against early FB announcements though. I have had people share crazy early (like sharing pictures of the bfp!) and I think that's a bit much for anyone struggling to conceive or suffering from miscarriage(s). That's just my opinion though!